
Blue Water Marine Barriershield Primer
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Boat Bottom Paint
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Product Description
Barriershield Primer is a one-part antifouling sealer. It is a perfect barrier coat to go over incompatible or unknown antifoulings.
- Barrier Coat over Incompatible / Unknown Antifoulings
- Excellent Primer over Sanded Fiberglass
- Excellent Barrier against Galvanic Corrosion
- Prevents Leaching of TBT Antifouling Coatings
- Anticorrosive Primer for Underwater Metals
- High-Performance Coating for Yacht, Marine, Industrial
Click Here > Barriershield Primer Technical Data Sheet
Click Here > Barriershield Primer Primer MSDS
Blue Water Marine Barriershield Primer compares to Sea Hawk Paints 1277 Bottom Paint Primer
Compare Bluewater Marine Bottom Paints to Other Brands
*This Item Ships From Florida Click to See Estimated Transit Times

Recommended Topcoat: Antifouling Bottom Paint - Hard Modified Epoxy or Self Polishing Ablative - Within 5 hours at 75 degrees F.
On Sanded Aluminum: Apply one thin coat of Etch Primer before applying Barriershield.
Application: Brush, Spray, or Roller. Roll: 3/8" - 1/2" nap mohair metal, lambskin, phenolic core roller. Keep roller wet. Roll in one direction, re-wet, then cross roll. The product can be reduced as needed with Hi Flash Naphtha to allow proper flow out and performance.
Spray: Conventional Air Gravity Feed 59-70 psi, Tip Size .055 -.070, Airless 2200-2500 psi, Tip Size .013-.017. The product can be reduced with Xylene as needed for proper flow out and performance. For Air Spray reduce 25% with enamel reducer (Xylene).
Surface Preparation: Water blast surface to remove all loose paint, dirt, oils, and grease. Abrade with 240 grit dry sandpaper or equivalent. Solvent wipe down to remove all sanding residue.
Safety Data Sheet - Barriershield Primer
Suggested Uses
Sanded fiberglass, over incompatible or unknown antifoulings, sealing off TBT antifoulings, priming underwater metals.
Limitations: Do not apply if material, substrate, or ambient temperature is below 40°F or above 95°F. DO NOT APPLY ABOVE THE WATERLINE.
Colors: Blue Gray
Finish: Matte
Vehicle Type: Hydrocarbon and Vinyl Resins
Solvent Type: High Flash Naphtha / Xylene
VOC: 3.76 lbs. / gal (450 grams / liter)
Solids By Weight: 40%
Weight Per Gallon: 8 lbs. per gallon (varies by color)
Recommended Dry Film: 4.0 mils
Coverage: Theoretical coverage at two mils dry is 400 square feet per gallon, and the recommended thickness of 4 mils dry would require 2 full coats. Material losses during mixing and application will vary and must be taken into consideration. Expect 50% less coverage on bare, rough, or sandblasted surfaces.
Viscosity At 75°F (24°C): 70-80 KU
Average Dry Time 75°F: Dries to touch in 2 hours, overcoat in 5 hours. Lower temperatures & higher humidity will slow down dry times.
Recommended Reducer: Naptha
Pot Life: Not Applicable
Shelf Life: Minimum 36 months
Mixing: Mix for 5 minutes, making sure that all solid material is mixed thoroughly.
Cleaning: Naptha