SEM 39684 Self Etching Primer, Gray, Quart

SEM 39684 Self Etching Primer, Gray, Quart

• SEM 39684 Self Etching Primer is a gray, acid-etching primer designed as a first-step coating for properly prepped bare steel, aluminum, and stainless steel. It promotes strong adhesion and corrosion resistance, dries fast, and is intended for use under primer surfacers and most automotive paint systems.
• Features:
  • Self etching formula bites into bare metal to improve primer and topcoat adhesion.
  • Provides corrosion resistance on properly prepped steel, aluminum, and stainless steel.
  • Quick drying coating suited to overall refinishing or spot repair workflows.
  • Designed for use under primer surfacers and compatible with most automotive paint systems.
  • Quart packaging supports spray gun application for controlled film build.
• Specifications:
  • Manufacturer: SEM Products
  • Part Number: 39684
  • Product Name: Self Etching Primer
  • Color: Gray
  • Container Size: 1 quart
  • Product Type: Self etching primer for bare metal
  • Suitable Substrates: Properly prepped bare steel, bare aluminum, stainless steel
  • Topcoat Compatibility: Use under primer surfacers and most automotive paint systems
  • Application and Compatibility: First-step primer for metal panels prior to surfacer and topcoat application
• The Self Etching Primer can also be referred to as self etch primer, bare metal etching primer, automotive metal prep primer, gray etching primer, and corrosion resistant etch primer.

SEM Products manufactures professional refinish and repair materials for automotive and related industries, including surface prep chemicals, primers, coatings, adhesives, and color systems used by collision and restoration shops.

Q: What metals can SEM Self Etching Primer be applied to?
A: It is intended for properly prepped bare steel, bare aluminum, and stainless steel.

Q: Is this primer meant to be topcoated?
A: Yes. Apply it as a first-step coating, then follow with primer surfacer and your chosen automotive topcoat system.

Q: How many coats should be applied?
A: Apply light, even coats until coverage is achieved, allowing short flash time between coats before moving to surfacer.

Q: Can it be used for spot repairs?
A: Yes. It is suitable for both overall refinishing and localized bare metal spot repairs.