SEM 39671 Self Etching Primer, Black, 1 gal, VOC Compliant
- SEM 39671 is a black self etching primer in a 1 gal can for bare metal prep. It promotes adhesion and corrosion resistance on properly prepared steel and aluminum, dries quickly, and is VOC compliant in bulk packaging. This is a standalone coating, not a replacement part.
- Features:
- Adhesion promoting acid etch primer for bare steel and aluminum to help topcoats bond and last.
- Quick drying with a typical 10 to 20 minute topcoat window to speed booth cycles.
- Ready to spray from the can; do not thin, simplifying setup and mixing.
- Bulk products VOC compliant to support regulatory requirements in most markets.
- Standalone coating for metal prep; not a replacement component for another SKU.
- Specifications:
- Manufacturer: SEM
- Part Number: 39671
- Product Type: Self etching primer
- Color: Black
- Size / Capacity: 1 gal can
- Suitable Substrates: Bare steel; bare aluminum
- Application Guidance: Ready to spray; HVLP 8 to 10 psi at the cap; non HVLP 25 to 30 psi; fluid tip 1.2 to 1.4; apply 2 to 3 light coats; flash 5 to 10 minutes between coats; topcoat after 10 to 20 minutes
- VOC Information (gallon and quart): Regulatory 5.33 to 5.40 lb per gal; Actual 1.9 to 2.2 lb per gal
- System Compatibility or Application: Use as the first step on properly prepared bare metal; do not apply color directly to self etching primer; not a replacement for a specific SKU
- Quantity: 1 can
- The Self Etching Primer can also be referred to as self etching primer, black self etch primer, acid etch primer, automotive metal primer, and SEM 39671.
SEM manufactures professional automotive coatings for collision repair and refinishing. Self Etching Primer is a first step coating formulated to promote adhesion and corrosion resistance on properly prepared metal before surfacers and topcoats.
Q: Is 39671 ready to spray or does it need to be reduced?
A: It is ready to spray and should not be thinned. Use HVLP 8 to 10 psi at the cap with a 1.2 to 1.4 fluid tip.
Q: What metals can I apply it to?
A: Apply to properly prepared bare steel and aluminum as directed in the technical data sheet.
Q: Can I apply color directly over self etching primer?
A: No. Do not apply color directly to self etching primer. Follow with appropriate surfacers before topcoating.
