National Rule 4:1 High Build Primer


Multipurpose primer offering the functionality of ‘3 products in 1’. Mix 4:1 for a primer filler, 4:1:1 for a primer surfacer or 4:1:2 for a primer sealer.

  • Use for spot repair and large panels
  • Excellent build and surface leveling properties
  • Easy to sand wet or dry
  • Can be applied direct to metal, over most plastics and over unsanded E-coat, aluminum* and galvanized*
  • Tintable with up to 10% with urethane mixing base

*Requires an acid etch primer, like ACID#8™

Substrates: Bare metal, properly prepared aluminum and galvanized, GRP, SMC, fiberglass, polyester filler, OEM surfaces

SKU: UP2253 Categories: , Tag:


Code Size/Pack Color Ctn Technical Data Sheet Safety Data Sheet
UP2253 1 US Gallon Tin Gray 2 UP2253 TDS UP2253 SDS
UP2251 1L Tin Gray 6 UP2251 TDS UP2251 SDS
UP2275 1 US Gallon Tin Black 2 UP2275 TDS UP2275 SDS
UP2274 1L Tin Black 6 UP2274 TDS UP2274 SDS
UP2277 1 US Gallon Tin White 2 UP2277 TDS UP2277 SDS
UP2276 1L Tin White 6 UP2276 TDS UP2276 SDS
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