Karnak #405 Bond-N-Shield Base Coat (5 Gal)

Karnak #405 Bond-N-Shield is a 100% elastomeric acrylic co-polymer emulsion base coat designed to bond tightly to asphalt surfaces. It includes stain blockers to help prevent asphalt bleed-through and is engineered for improved water-blister resistance in temporary ponding areas.

Key Features:

Strong Asphalt Adhesion: Formulated as a base coating to provide excellent adhesion to asphalt surfaces.
Bleed-Through Blocking: Built-in stain blockers help prevent asphalt bleed-through for a brighter topcoat appearance.
Elastomeric Flexibility: 100% elastomeric acrylic coating designed to move with the substrate and resist cracking.
Ponding-Area Performance: Improved water blistering resistance versus traditional acrylic coatings in temporary ponding areas.
Low-VOC Formula: VOC content up to 45 g/L (max).

Please check the Product Data Sheet Here

Specifications Table:

Specification	Details
Product name	Karnak #405 Bond-N-Shield Base 5GAL
Description	Karnak #405 Bond-N-Shield Base 5 Gallons
Category	Roofing Materials
Subcategory	Roof Coatings
Unit of measure	DR - Drum
Manufacturer part number	405-5G
Color	Light Blue
Container size options	275 gallon totes; 55 gallon drums; 5 gallon pails
Weight per gallon	11.4 lbs.
Viscosity	34,000 cps (ASTM D2196 Method A)
Solids by weight	65% (nominal)
Solids by volume	53% (nominal)
Hardness	Shore A 60
Elongation	800% (nominal) (ASTM D2370)
Tensile strength	249 PSI (nominal) (ASTM D2370)
Tear resistance	83 lbs force/in. (ASTM D624)
Permeability	3.0 perms
Cure time	24 to 48 hours @ 77°F and 50% relative humidity
Application temperature range	40°F to 120°F
Service temperature (cured film)	-15°F to 180°F
VOC content	45 g/L MAX
Product description (manufacturer)	100% elastomeric acrylic, co-polymer emulsion base coating designed for excellent adhesion to asphalt surfaces; contains stain blockers to prevent asphalt bleed-through; improved water blistering resistance in temporary ponding areas versus traditional acrylic coatings.
Applicable standards	ASTM D2196 Method A; ASTM D2370; ASTM D624

Frequently Asked Questions (FAQ):

Q: What surfaces is #405 Bond-N-Shield designed for?
A: It is specifically designed as a base coating to provide excellent adhesion to asphalt surfaces.

Q: What does the stain-blocking feature do?
A: It helps prevent asphalt bleed-through, supporting a brighter-looking coating system over asphalt-based substrates.

Q: How long does it take to cure?
A: Typical cure time is 24–48 hours at 77°F and 50% relative humidity.

Q: What application temperatures are recommended?
A: Apply between 40°F and 120°F.

Q: What container size is this product?
A: This listing is for a 5-gallon pail.

A Clean, Confident Foundation for Brighter Roof Finishes

Think of this as the quiet power layer—an elastomeric acrylic base that grips asphalt with conviction and sets the stage for a crisp, luminous finish. The stain-blocking technology keeps unsightly bleed-through from dimming your final look, so whites read cleaner and more intentional. Use it to elevate roof restoration projects where durability and visual clarity matter, especially in areas that see intermittent ponding. It’s the kind of behind-the-scenes essential that makes the whole system feel undeniably more luxe and refined.

Choose Karnak #405 Bond-N-Shield in a 5-gallon pail to create a brighter, better-bonded coating system over asphalt surfaces.