What type thinner for brush and roller application?

I used a regular smooth finish wall roller standard paint brush to apply it. Is a water-based product I did not have to thin it but if I did I would have used water

whats the square foot coverage per quart?

400 sq. ft. per gallon, so 1 quart would cover 100 sq. ft.

Can this be used over painted fiberglass?

Yes , it’s actually best to prime the bottom then apply the bottom paint , been using it for years

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INTERLUX - Fiberglass Bottomkote NT, Paint For Fiberglass Boats, Antifouling Paint For Boats, Marine Paint For Fiberglass Boats, Antifouling Bottom Paint in Blue

INTERLUX - Fiberglass Bottomkote NT, Paint For Fiberglass Boats, Antifouling Paint For Boats, Marine Paint For Fiberglass Boats, Antifouling Bottom Paint in Blue

Product ID: 747728738

Details

Brand
Interlux
Colour
Blue
Item volume
1 Gallons
Size
1 Gallon (Pack
Unit count
128.0

🌊Season-Long Antifouling

⏱️Fast Dry Formula

⚙️Dual Resin Tech

Description

🚤 Glide faster, paint smarter—stay ahead on every wave!

FAST DRY FORMULA - Paint and launch your boat the same day—no downtime, just instant readiness.
VIBRANT BLUE FINISH - Keeps your boat looking sleek with clean, stable color that lasts all season.
DUAL RESIN TECHNOLOGY - Combines hard and ablative paint benefits for unmatched durability and smooth polishing.
FUEL EFFICIENT COATING - Surface continuously smoothes with use, reducing drag and saving fuel on every voyage.
UNIVERSAL MARINE PROTECTION - Effective on fiberglass, wood, and primed metals (except aluminum) in fresh, salt, and brackish waters.

INTERLUX Fiberglass Bottomkote NT is a cutting-edge antifouling paint featuring dual resin technology that merges the toughness of hard paints with the smooth polishing action of ablative paints. Its fast-dry formula lets you paint and launch your boat the same day, while providing season-long protection against marine growth in all water types. Designed for fiberglass, wood, and primed metal hulls, this vibrant blue coating enhances fuel efficiency by maintaining a smooth underwater surface.

Specifications

ASIN	B0053HQQDU
ASIN	B0053HQQDU
Age Range Description	Adult
Brand Name	Interlux
Color	Blue
Container Type	Bottle
Customer Reviews	4.5 4.5 out of 5 stars (250)
Customer reviews	4.5 4.5 out of 5 stars (250)
Date First Available	27 June 2019
Global Trade Identification Number	00081948000383
Included Components	Interlux YBB369/1 Fiberglass Bottomkote NT Antifouling Paint - Blue, Gallon
Item Type Name	Fiberglass Bottomkote NT Antifouling Paint (Blue)
Item Volume	1 Gallons
Item Weight	128 Ounces
Item model number	YBB369/1
Manufacturer	Interlux
Manufacturer	Interlux
Model Name	INTYBB369G
Model Number	YBB369/1
Paint Type	Antifouling
Part Number	YBB369/1
Product Dimensions	18.42 x 34.93 x 19.69 cm; 3.63 kg
Size	1 Gallon (Pack of 1)
UPC	081948000383
Unit Count	128.0 Milliliters

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