EVERCOAT 100730 Super Build Polyester Primer Surfacer, Gray, 4:1 Mixing, 1200 sq-ft/gal Coverage, 1 Gallon

EVERCOAT 100730 Super Build Polyester Primer Surfacer, Gray, 4:1 Mixing, 1200 sq-ft/gal Coverage, 1 Gallon

• Evercoat 100730 Super Build 4:1 is a two-component hybrid polyester/epoxy primer surfacer formulated for high build, exceptional filling, strong adhesion, and corrosion protection across a variety of substrates.
• Features:
  • Patented 4:1 mix ratio yields consistent performance and reduces mixing errors.
  • Exceptional filling capability ideal for "holding down" contentious repairs on fiberglass and SMC.
  • Corrosion resistance passes 500 hours in ASTM B117 salt spray testing.
  • Direct-to-metal capable when applied properly (minimum film thickness, multiple coats) without needing epoxy precoat.
  • Waterborne paint compatible and VOC compliant suited for modern refinish systems.
• Specifications:
  • Manufacturer: Evercoat
  • Part Number / SKU: 100730
  • Volume: 1 Gallon
  • Mix Ratio: 4 parts primer to 1 part 4:1 Polyester Primer Catalyst (part 733 or 734 fast)
  • Pot Life: 60 minutes @ 75 °F (24 °C)
  • Application Method: spray with primer gun, 1.6-2.2 mm fluid nozzle recommended
  • Dry Film Thickness (DFT): 6.0-8.0 mils per coat typical
  • Substrate Compatibility: Aluminum, bare metal, fiberglass, SMC, rigid plastics, body filler or putty (when properly prepared)
• Evercoat 100730 also marketed under names: Super Build primer, Evercoat 4:1 primer surfacer, Evercoat Ultra High Build 4:1 Primer.

Evercoat is a leading manufacturer of high-performance body repair products, specializing in premium fillers, putties, adhesives, and coatings designed for professional automotive, marine, and industrial applications.

Q: Can I apply this primer directly to bare metal without epoxy pre-coat?
A: Yes, provided you apply at least two coats at a recommended film thickness (4.5-6 mils each) to ensure protection. Evercoat states that an epoxy precoat is not required when using their 4:1 primers under these conditions.

Q: Why must I use 733 or 734 catalysts?
A: Evercoat specifies that only their 733 4:1 Polyester Primer Catalyst or 734 Fast 4:1 Polyester Primer Catalyst should be used to ensure proper cure performance, chemical balance, and corrosion resistance.

Q: How thick can I build in a single coat?
A: Typical recommended build per coat is 6-8 mils. For heavier fills or deeper repairs, use multiple coats rather than overbuilding in one pass.