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Paint Knowledge

FAQs

Paints

EPOXY
  • The question of EP-04 Epoxy Topcoat is about yellowing.
    • The epoxy reisn with yellowing property, so the yellowing result is different from before curing and after curing when the paint film explosed to UV light. Always, the yellowing result before curing is worse than after curing under the sun shine.
    • EP-04 Epoxy Topcoat is suitable to apply for interior structure, as to apply for exterior structure, the UP-04 PU Coating is recommendable.
  • The automobile maintenance depot uses in the bipod crest elevation machine or the maintenance vehicle galvanized plate of, asked uses what kind of paint system?
    Our suggestion is as follows:
    • Surface treatment:Clean the board by the steel brush, solvent and cleaner。
    • Primer:NO.1020 Epoxy Alloy Primer。
    • Topcoat:NO.1001 Epoxy Topcoat(EP-04)。
  • In the roof the balcony corner and the cement floor want to do guard against leak processing, how should construct?
    • Surface treatment:The dirt of cement surface clean-up is clean, the iron pipe must grind and remove the rust.
    • Primer:NO.1073 Epoxy Clear Cement Primer (15μ )。
    • Middle:NO.1080 Solventless Epoxy Elastomer Coating (200μ x 2 coats)。
    • Topcoat:NO.751 Elastic PU Coating (30μ )。
  • What kind of coating should use in the stainless steel products?
    • Surface treatment:Clean grease by solvent.
    • Primer:NO.1020 Epoxy Alloy Primer (25μ )
    • Topcoat:Interior : NO.1001 Epoxy Topcoat(40μ x 2 coats);Exterior : UP-04 PU Coating(30μ x 2 coats)
  • What kind of coating should use in the lubricating oil tank internal?

    Our suggestion is as follows:

    • EP-4556 High-solids Amine-cured Epoxy (100μ x 3 coats)
    • or Solvent Free Amine-cured Epoxy (150μ x 2 coats)
  • What is the method of FRP application for the acid resistance in mechanical equipment?

    Our recommendation is as follows :

    • Surface treatment :Sand blast to above SIS Sa 2 1/2.
    • NO.1615SP Vinyl Ester Sealer/Primer (For steel)100μ
    • NO.1606 Vinyl Ester Fiber Glass Multilayer Lining(EM-450)
    • NO.1606 Vinyl Ester Fiber Glass Multilayer Lining(EM-300)
    • NO.1606 Vinyl Ester Fiber Glass Multilayer Lining(EM-30)
    • NO.1607 Vinyl Ester Finish 100μ
  • How to use the Epoxy Putty?

    The hardener (light red) pour into the base (white), and stir thoroughly still the red disappearance, then the mixture can be used to apply approximately 30 minutes (25℃) after mixing.

  • The pump motor soaks for a long time in the water, and need the black color paint that is able to guard against rust, asked what kind of product can be used?

    Either uses No.1061H(EP-999H) High Solids Epoxy Coating to apply two coats, and the paint film must reach 250μ or EP-06 Epoxy-Tar, HB.

  • The EPOXY-TAR, HB belongs what kind of coating, and when used in the concrete whether has the function of waterproof?

    The EPOXY-TAR is our product of No.1078 EPOXY-TAR, HB that might use in the concrete moreover has anti-corrosive and waterproof function. The recommended painting system is as follows:

    • Primer : NO.1073 EPOXY CLEAR CEMENT PRIMER.
    • Topcoat : NO.1078 EPOXY-TAR, HB (250μ×2 coats), and the overcoating interval is one day.
  • How many square meters can apply with one gallon of the epoxy coating light colored series?

    According to the thickness of dry film 40μ of the EP-04 Epoxy Topcoat calculation, 1 gallon might paint 25~27M² approximately.

  • What kind of paint system should use for the avgas tank inside?

    Our commendation is as follows:
    Use EP-4556 High-Solids Amine-Cured Epoxy to paint 3 coats, each coat get 100μ of paint film.

  • What kind of paint system should use for the avgas tank inside (load pressure oil) to resist the acid and alkali?
    • Sand to blast SIS Sa 2 1/2.
    • EP-4556 High-Solids Amine-Cured Epoxy (100μ x 3 coats) or EP-4556F Solvent Free Amine-cured Epoxy (150μ x 2 coats) .
  • What kind of paint system should use to resist rust for the freezer?

    (A)Internal :

    • NO.1027 Epoxy Zinc Rich Primer(EP-03AA)50μ .
    • NO.1009 Epoxy Red Oxide Primer(EP-02)45μ .
    • NO.1001Epoxy Topcoat(EP-04 ), 40μ x 2 coats .

    (B)External:

    • NO.1027 Epoxy Zinc Rich Primer(EP-03AA)50μ .
    • NO.1050 Epoxy M.I.O. Primer(EP-20)75μ .
    • UP-04 PU Coating, 30μ x 2 coats.
  • What kind of paint system should use for the internal of diesel tank?

    Our recommendation is as follows:
    Use EP-4556F Solvent Free Amine-cured Epoxy to get 300μ of paint film by 2 coats or EP-4556 High-Solids Amine-Cured Epoxy 100μ x 3 coats, total 300μ.

  • The cement floor happened the flaking phenomenon when had applied the EP-04 Epoxy Topcoat.

    There are the causes as follows:

    • Because of the ground moisture rise, therefore the suggestion is to test by the adhesive tape and sure no moisture rise before coating. If still has same result, we suggested you to use the water-based epoxy series.
    • The surface of cement must use the grinder suitable abrasion to have rough surface for easy adhesion.
PU-PU
  • What kind of paint system should use for the galvanized steel in exterior?
    • Primer:NO.1020 EPOXY ALLOY PRIMER.
    • Topcoat:UP-04 POLYURETHANE COATING, 30μ x 2 coats.
  • Whether the washed gravel wall protected by the clear coat could apply polyurethane coating?

    Yes, the NO.722 POLYURETHANE COATING, CLEAR or the NO.751 ELASTIC POLYURETHANE COATING is good.

  • What kind of paint system could be used for the wood to waterproof?
    • Primer:NO.710 POLYURETHANE WOOD SEALER, 20μ.
    • Primer:NO.711 POLYURETHANE SANDING, 25μ.
    • Grind treatment.
    • Topcoat:NO.713 PU COATING, CLEAR, NN TYPE, 2 coats or NO.722 PU COATING, CLEAR, N TYPE, 25μ x 2 coats.
  • How many years is the period of weather resistance when the No.738 PU Coating, Golden Color finished the PU Coating, Clear?

    The paint to weather resistance above five years is sure in the normal condition.

  • What kind of paint system could be applied to the front door of the temple all around that want to coat red paint and then paint golden word?

    Our recommendation is first to spray No.728 PU Coating, Red (N-Type) for wall, and then use No.738 PU Coating, Golden to write word.

  • What kind of paint system could be used for the copper pipes of air conditioner?
    • Primer : No.1020 Epoxy Alloy Primer.
    • Topcoat : UP-04 PU Coating, (N-Type).
EMULSION
  • Whether the external wall can coat the emulsion paint or others?

    To coat external wall our recommendation is the No. 406 High Gloss Emulsion Paint, No.421 Water-Based Elastomeric Coating or SA2000 Dirt Off Exterior Acrylic Emulsion Paint.

  • Could the No.860 Emulsion Paint be used as the primer and then topcoated the latex paint?

    No, please use the No. 410-1 Emulsion Paint, Primer to be a primer.

  • The latex paint whether could be finished directly on the wall and not need the primer or not when used in interior?

    The latex paint may not need the primer, and can be applied one or two coat, but the surface must certainly clean.

  • The gravel ceramic tile whether or not coats waterproof coatings?

    The paint system is :

    • Primer:NO.420 Water-Based Elastomeric Sealer, one coat(25μ).
    • Topcoat:NO.421 Water-Based Elastomeric Coating, two coats(250μ×2).
  • How is the application procedure of water-based elastomeric coating?
    • Surface treatment : To clean dirt and the moisture content of cement surface must below 12% before coating.
    • Primer:NO.420 Water-Based Elastomeric Sealer, one coat (10μ).
    • Topcoat:NO.421 Water-Based Elastomeric Coating, two coats (250μ x 2).
  • The elastic putty and elastic cement paint whether has good adhesion for the crack of the exterior wall or not?
    The recommendation is as follows for good adhesion:
    • Primer:NO.420 Water-Based Elastomeric Sealer.
    • Putty:NO.422 Water-Based Elastomeric Caulk.
    • Topcoat:NO.421 Water-Based Elastomeric Coating.
  • What kind of paint system could be used for waterproof function in exterior wall?
    • Primer:NO.420 Water-Based Elastomeric Sealer.
    • Topcoat:NO.421 Water-Based Elastomeric Coating, 2 coats (120μ~250μ of per coat).
  • How many is the coverage rate of the No.421 Water-Based Elastomeric Coating?

    One gallon of the No.421 may apply about 5 square-meter depend upon the thickness of dry film about 250μ per coat and need to apply 2 to 3 coats.

  • What kind of paint system could be used for calcium silicate board?
    • To apply NO.420 Water-Based Elastomeric Sealer or NO.410-1 Emulsion Paint, Primer at one coat.
    • With sand paper to abrade twice.
    • And then to apply emulsion paint or emulsion matt paint or SA2000.by two coats.
SOLVENT-BASED CEMENT MORTAR
  • The question was as the solvent-based cement primer finished the solvent-based flat cement paint on alternate days, and then appeared the cracked phenomenon

    The ways of solution have tree as follows:

    • The primer reduced gloss to equal to finish or more lower.
    • The finish increased gloss to equal to primer or more higher.
    • To abrade the surface of primer coat before finishing.
Heat-Resisting Paint
  • The Heat-resistant Paint is still soft and wet after being sprayed, what are the reasons for this?

    As the resin Silicone of the Heat-resistant Paint will be completely dried and hardened after exposing to heat, it should be baked till hardening

    • according to the consolidating conditions stated in the brochure for the respective heat resistance. Therefore, the softening status after being
    • sprayed in a normal condition; however, it is required to protect the external surface of the film from hitting when moving (for details of consolidation
    • time and temperature of the respective heat-resistant paint, please refer to our product catalogue).
  • Can the 500℃ heat-resisting silver paint be used to coat the exhaustion pipe of the motorcycle?

    Negative, because the 500℃ exhaustion pipe heat-resisting paint is available in our stock (min. package will be 20kg per bucket).

  • Is it normal to have a smaller hole on the heat-resisting silver paint bucket?

    Because the heat-resisting silver paint is vulnerable to gas explosion, a hole is designed to release the pressure within the bucket.

  • The heat-resisting paint cannot be dissolved when diluting with banana oil, why?

    Due to varied properties of the paint, it is required to use exclusive solvent and it cannot be diluted with other kind of solvent.

  • When applying the 300℃ heat-resisting paint onto IZ-01 inorganic zinc dust paint, the peeling phenomenon is experienced during the coating process.

    • Its cohesion with the base material is poor, and it is required to refinish the base material again.
    • The peeling has happened due to incomplete spraying and it must be sprayed again (poor cohesion will be resulted because the zinc dust on the IZ-01 film has not been removed before coating the 300℃ heat-resisting paint. It is suggested that the zinc dust must be removed before applying the 300℃ heat-resisting paint).
    • Because the 300℃ heat-resisting paint has not been baked, so it is not completely hardened
Vinyl Ester Paint
  • What system can be used if to apply the glass flake paint for the drainage trench of the power plant?

    The vinyl ester glass flake coating system is as below:

    • Primer: No. 1615CP vinyl ester resin primer (for cement surface), 100μ - one layer.
    • Intermediate Coat: No. 1612 vinyl ester glass flake paint, 250μ - two layers.
    • Finish Coat: No. 1607 vinyl ester finish coat, 100μ - one layers.
  • What coating system should be used for the steel structure under the acidified environment (hydrochloric acid)?

    Suggested coating system:

    • No. 1615SP vinyl ester resin primer (for steel surface), 100μ.
    • No. 1612 vinyl ester glass flake coating, 300μ.
    • No. 1607 vinyl ester finish coat, 100μ.
  • What coating system should be used if to apply 5 layers of acid-alkali resistant paint in the carbon steel wastewater tank?

    Suggested coating system:

    • 1st Layer: No. 1615SP vinyl ester resin primer (for steel surface).
    • 2nd Layer: No. 1615SP vinyl ester fiber glass multi-layer coating (EM-450).
    • 3rd Layer: No. 1606 vinyl ester fiber glass multi-layer coating (EM-300).
    • 4th Layer: No. 1606 vinyl ester fiber glass multi-layer coating (EM-30).
    • 5th Layer: No. 1607 vinyl ester finish coat.
  • What kind of paint should be used for coating the Heat Exchanger piping (under approx. 100℃ steam environment)?

    Suggested coating system for the high-temperature humidified environment:

    • No. 1615SP vinyl ester resin primer (for steel surface), 100μ.
    • No. 1612 vinyl ester glass flake coating, 250μ.
    • No. 1607 vinyl ester finish coat, 100μ.
Fungicidal Paint
  • What kind of paint should be used to solve the moldy (dark specks) phenomenon on the external wall?

    It is suggested that two layers of No. 418 solvent-based anti-mold cement coat, and the anti-mold duration will be about 3 years.

  • How many pings can be covered by one gallon of solvent and water based fungicidal paint?

    If calculated at 35μ per coating (manual brushing), then one gallon of water-based fungicidal paint can cover approx. 8.5 pings; and that of solvent-based paint will be about 9 pings.

  • How many pings can be covered by one gallon of No. 500-4 water-based epoxy fungicidal paint if brushed manually?

    If calculated at 35μper coating (manual brushing), then one gallon of No. 500-4 water-based epoxy fungicidal paint can cover approx. 9 pings.

  • What kind of fungicidal paint should be applied for coating the calcium silicate board?

    It is suggested that No. 500-1 water-based fungicidal paint or No. 500-4 water-based epoxy fungicidal paint should be used.

  • How much anti-mildew agent should be mixed in 5 gallons of solvent-based cement paint in order to achieve the expected effect?

    One gallon of solvent-based cement paint should be mixed with one stick of anti-mildew agent, and so on.

Ready Mixed Paint
  • Creases are seen on the coating film of silver ready mixed paint.

    It could be due to the following four reasons:

    • The film is too thick. Please apply the paint according to the specified film thickness.
    • The coating interval is too short. Please apply the paint according to the specified coating interval.
    • Wrong solvent is used. Please use the correct solvent.
    • The site is poorly ventilated that is not easy for drying. It is suggested that the site should be fitted with additional ventilation equipment such as electric fan, etc.
  • Assuming that the outdoor steel structure has been coated with ready mixed paint, if to apply the coating again in order to resist against acid and alkali, how should it be treated?

    We suggest that you should remove the ready mixed paint from the surface with paint remover and then apply two layers of Amerlock 400 high solidifying epoxy paint. Finally, apply one layer of UP-04 vinyl ester finish coat.

Rubber Paint
  • How to mix the silver rubber paint?

    Blend the silver paste and the resin and then stir and it is ready for use. To dilute, mix RP-71 rubber thinner.

Fire Retardant Series
  • Why is the moldy phenomenon seen on the material surface when applying Firecut F-1 in a basement or poorly ventilated location?

    F-1 contains the cement and wooden fiber that is vulnerable to mold when applied in damp areas. It is suggested that one layer of No. 500-1 water-based fungicidal paint be sprayed about 3 days after coating the F-1.

  • What will be the coating amount per gallon when applying the fire-resistant paint on calcium silicate board? What kind of primer should be used, flat enamel or glossy? How many types will be available for this? And what kind of thinner should be used?
    • With the specified thickness, the coating area will be about 2 pings per gallon.
    • Use No. 860 water-based cement paint as the primer.
    • Flat enamel type.
    • The fire-resistant paint will be as follows: FW-30 water-based expansion-type fire-resistant paint and FS-31 solvent-based expansion-type fire-resistant paint.
    • FW-30 should be diluted with water, and FS-31 should be diluted with xylene.
  • The steel structure of the gas station should be coated with 1-hour fire-retardant fire-resistant paint. What kind of fire-resistant coating system should be selected?

    It is suggested that the steel structure should be coated with one layer of 50μNo. 1076 epoxy zinc phosphate anti-rust primer (EP-66) first, and then topped with the following paint after being erected at the site.

    • FM-900 Firecut solvent-based expansion fire-resistant putty paint (the thickness meeting the statutory codes will be calculated according to structural dimensions).
    • One layer of No. 1030 water-based epoxy finish coat.
  • What kind of primer should be used for the steel structure fire-resistant paint?

    It is suggested that it should be coated with one layer of 50 μNo. 1076 epoxy zinc phosphate anti-rust primer (EP-66) first.

  • Can the cement paint be applied during the drying process of fireproof coat?

    The fireproof coat requires a longer drying time, which is about 7 days, and the paint should be coated after it is dried through. It is suggested that vinyl ester finish coat should be used to achieve a better effect, however either water-based cement paint or solvent-based cement paint can also be used.

  • Can water-based fire-resistant paint be available for color blending?

    The pigment can be used for treating into a lighter tone, but it may affect the fire-resistant performance.

  • How wide can be covered by per gallon of solvent-based fire-resistant paint? Is it provided with Level-1 fire-resistant certificate?

    Based on the thickness specified for Level-3 heat retardant performance, each gallon of FS-31 can be used to cover 2.1 pings. Such product is provided with Level-3 fire-retardant certificate only.

Marine Coating
  • Marine organism tends to attach to the ship bottom (fishing boat), what kind of paint should be used?

    As the fishing boat is usually cruising at slower speeds or stops frequently, the lower-speed ship anti-fouling paint should be used.

  • The anti-fouling paint at the ship bottom (commercial ship, fishing boat) tends to peel off, how should it be treated?

    Before applying the paint, remove the contaminants and oil stains completely and then apply the coating till after the surface is dried through.

Paint Remover
  • How to remove the paint with No. 2101 Paint Remover?

    The Paint Remover is used to remove ready mixed paint, synthetic enamel and rubber paint. Removing method is as follows: Soak the brush in the Paint Remover and then spread evenly on the paint surface. Till after 10 to 30 minutes, the Paint Remover will force the paint to peel off gradually and then rinse with fresh water.

Others
  • What kind of concrete adhesive should be used to resist against over 6,000 pounds of pressure?

    It is suggested that our No. 1091 epoxy injection-type concrete adhesive should be used.

  • What are the reasons causing the creases after brushing the premium varnish?

    Maybe the brushed film is too thick or wrong solvent is used.

  • Why patterns are not presented after spraying the texture finish?

    Listed below are possible scenarios:

    • Excessive solvent is added so that the film is overly expanded and the patterns cannot be presented.
    • Damp weather has slowed down the evaporation of solvent that the patterns cannot be presented.
    • Wrong solvent is used. In this case, use benzene or banana oil.
  • What kind of paint should be used to repair the rusted rooftop paint-baking sheet?
    • Surface treatment: Remove the rusty area and the contaminants attached to the coated surface.
    • Primer: Apply one layer of Amerlock 400 high-solidifying epoxy paint.
    • Finish coat: Two layers of UP-04 vinyl ester coat.
  • What kind of paint should be used to present smooth plastering surface for the concrete mixer?

    Sandblasting the surface till to SIS Sa 21/2 standard first and then apply the paint according to the following coating procedure:

    • One layer of 75μ No. 1011 inorganic zinc dust primer (IZ-01).
    • Two layers of 75μ No. 1075 epoxy aluminum triphosphate primer (spray the Mist Coat first).
    • Two layers of 30μ UP-04 vinyl ester finish coat.
  • What will be the coating size for per gallon of inorganic zinc dust paint?

    Based on spraying 75μdry film thickness, it depends on the type of the coated target. For example, the plain face steel plate will be about 16M2 and that for the building steel structure, about 14M2.