Skip to main content

Boat Finish Primers



Awlgrip's 321 HS undercoat promises a new level of smooth finish, for less effort prior to topcoating.



After years in development, Awlgrip launched a new high solids finish primer: the 321 HS Undercoat. The product has reduced solvent emissions, which makes it a sustainable choice for builders, boatyards and applicators, even in Volatile Organic Compounds (VOC)-restricted areas.

Utilizing the very latest in resin technology and optimized pigment package, 321 HS Undercoat is likely to help with efficiencies in the yard. It can be applied in a single coat, yielding excellent flow and leveling properties previously unseen in most high solids, finishing primers. Linked are complete details regarding the application of primer coat and the topcoat. With excellent film build, the 321 provides the ideal surface for subsequent topcoat applications. Great hold-up makes it user-friendly to any applicator.

321 HS Undercoat is a smart alternative to other conventional finish primers. “Many high solids technologies on the market don't yield as smooth of a finish, requiring more effort and time to sand smooth. The surface may also cure too hard and be tough to sand after 3 days. With 321 HS Undercoat, you won't have those same concerns,” said Elenor Ekman of Awlgrip.

An extra bonus is the slight gloss or sheen of the dry paint film, which makes it easier to see and address any surface imperfections prior to topcoating. 321 HS Undercoat is the ideal finish primer for all Awlgrip topcoats with an easy to sand, long overcoat window.




GET THE NEWSLETTER Join the List and Never Miss a Thing.

Recommended Articles

Recent Videos

Learn

Scalloping Florida's Nature Coast

Learn

Sea Legs 101

Learn

Will Hatchery Fish Save Tripletail?

Learn

Vanishing Bite

Learn

Stocking the Future

Learn

Maintenance Before Mayhem!

Learn

Blue, Green & In Between

Gear

2026 Miami Boat Show Report

Learn

Beat of the Black Drum

Learn

Don't Sink Your Wallet!

Regions

Surviving The Florida Freeze!

Videos

The Ultimate Kayak Seat Cushion

Florida Sportsman Magazine Covers Print and Tablet Versions

GET THE MAGAZINE Subscribe & Save

Digital Now Included!

SUBSCRIBE NOW

Give a Gift   |    Subscriber Services

Preview This Month's Issue

Buy Digital Single Issues

Magazine App Logo

Don't miss an issue.
Buy single digital issue for your phone or tablet.

Get the Florida Sportsman App apple store google play store

Other Magazines

See All Other Magazines

Special Interest Magazines

See All Special Interest Magazines

GET THE NEWSLETTER Join the List and Never Miss a Thing.

Get the top Florida Sportsman stories delivered right to your inbox.

Phone Icon

Get Digital Access.

All Florida Sportsman subscribers now have digital access to their magazine content. This means you have the option to read your magazine on most popular phones and tablets.

To get started, click the link below to visit mymagnow.com and learn how to access your digital magazine.

Get Digital Access

Not a Subscriber?
Subscribe Now

Enjoying What You're Reading?

Get a Full Year
of Guns & Ammo
& Digital Access.

Offer only for new subscribers.

Subscribe Now

Never Miss a Thing.

Get the Newsletter

Get the top Florida Sportsman stories delivered right to your inbox.

By signing up, I acknowledge that my email address is valid, and have read and accept the Terms of Use