U-POL UP2251 System 20 4:1 High Build Primer, Gray, 1 Liter Tin, National Rule VOC

U-POL UP2251 System 20 4:1 High Build Primer, Gray, 1 Liter Tin, National Rule VOC

• Multipurpose urethane primer system for spot repairs and large panels. It can be configured as a primer filler, primer surfacer, or wet-on-wet sealer depending on the hardener and reducer ratio used.
• Features:
  • Suitable for mild steel, original paint, E-coat, polyester fillers, fiberglass, SMC, and properly prepared plastics.
  • Aluminum and galvanized steel require 1 to 2 light coats of ACID#8 Acid Etch Primer before application.
  • Tintable with up to 10% urethane mixing base.
  • Can be sanded wet or dry after curing.
  • Can be directly topcoated with most solvent-based and water-based basecoats or solid colors.
• Specifications:
  • Manufacturer: U-POL
  • Part Number: UP2251
  • Product Type: High build urethane primer
  • Color: Gray
  • Capacity: 1 Liter
  • Packaging Type: Tin
  • High Build Primer Mix Ratio: 4:1
  • Primer Surfacer Mix Ratio: 4:1:1
  • Wet-on-Wet Sealer Mix Ratio: 4:1:2
  • VOC Regulatory: 400 g/L, 3.34 lb/gal as packaged
• The U-POL System 20 High Build Primer can also be referred to as automotive urethane primer, high build primer filler, primer surfacer, wet-on-wet primer sealer, and gray automotive primer.

U-POL specializes in automotive refinishing products including fillers, coatings, aerosols, adhesives, and paint-related products. The company has 75 years of industry experience and sells products in more than 100 countries.

Q: Which hardeners can be used with UP2251?
A: System 20 Fast Hardener is specified for 50 to 80 F, Standard Hardener for 60 to 90 F, Slow Hardener for 70 to 100 F, and Extra Slow Hardener above 80 F.

Q: What preparation is required on aluminum and galvanized steel?
A: Apply 1 to 2 light coats of ACID#8 Acid Etch Primer and allow it to dry for 20 minutes before applying UP2251.

Q: Can UP2251 be topcoated with water-based basecoat?
A: Yes. It can be directly topcoated with most solvent-based and water-based basecoats or solid colors.