SpecChem Max-A-Seal DP
SpecChem Max-A-Seal DP
Contractor Overview
Max-A-Seal DP is a concrete sealer or water repellent. Non-fibered emulsion coating & air/vapor barrier system Max-A-Seal DP® is a Non-Fibered Emulsion Coating designed according to ASTM D1227, Type III specification. This asphalt emulsion coating is formulated to provide excellent damp-proofing and vapor barrier properties, making it suitable for various applications.
Best For
- Masonry
- Forms
Key Features
- VOC content, making it environmentally friendly and compliant with ICF forms
- Concrete surface protection
- Supports appearance and durability goals
Material & Application Notes
This asphalt emulsion coating is formulated to provide excellent damp-proofing and vapor barrier properties, making it suitable for various applications. It is available in fibered, non-fibered, and trowel-grade versions to suit different application needs. Suitable as a protective coating for asphalt, metal, wood, and masonry surfaces.
Why Contractors Choose It
Contractors choose Max-A-Seal DP when the slab or surface needs protection, appearance control, and a sealer matched to exposure conditions.

Application
- Surface Preparation:Must be applied to a dry or damp surface free from foreign matter. Can be applied to “green” concrete.
- Application Rate:40 ft²/gal for a 40 mil wet film or up to 100 ft²/gal, depending on the application.
- Double Coating:Recommended for tie seams.
- Equipment:Can be applied using a Graco GH833 Siphon Pump, 1/2” hose, Blue Texture Spray gun, and a GHD 661 Spray Tip, or comparable equipment. Remove the in-line filter when using.
- Temperature Conditions:Apply when surface and air temperatures are at 45°F and rising.
Packaging
Available in 5 gallon pails (18.9 L), 55 gallon drums (208.2 L), and 275 gallon tote (1,041 L).
Shelf Life
Shelf life is 1 year from the date of manufacture when stored in the original, tightly closed container.Do not store at temperatures exceeding 110°F.
Test Data
- Solids (%):50±3% minimum by weight (ASTM C1250)
- Density:8.1 lbs/gal ±4 (0.92 G/cm²)
- Application Methods:Airless spray, brush
- Cure Time:424 hours
- Dry Time:30 minutes
- Elongation:500% average
- Adhesion to Concrete:Excellent
- Low Temperature Flexibility:Remains flexible to 10°F
- Water Vapor Permeance:5.5 Perms
- Air Permeability (ASTM E2178):0.00159 L/s/m² at 75 Pa
- Liquid Water Absorption:0.5% by weight
- Resistance to Degradation:Excellent against bacterial, algal, and fungal attacks
- Resistance to Chemical Attacks:Highly resistant to acids and salts
- Re-emulsification:None
