D.A.P.
D.A.P. 18854 High Heat Mortar 10 oz Cartridge Black
High-temperature resistant silicate cement in a 10 oz cartridge for masonry and wood repairs
- High temperature resistance protects masonry and wood
- Silicate cement formula withstands extreme heat conditions
- ASTM E136 standard confirms fire-resistant performance
- 10 oz cartridge fits standard caulking guns
- Black colour matches dark mortar and brickwork
Product Identity
DAP 18854 is a high-heat silicate cement cartridge designed for masonry and wood repairs that must withstand elevated temperatures. It suits homeowners and tradespeople sealing fireboxes, chimneys or stove surrounds where standard caulk would fail.
Critical Specification
The mortar meets ASTM E136 for non-combustibility and is rated high-temperature resistant in a black 10 oz cartridge. That fire-resistant classification is the single figure that determines whether the product matches the job.
Installation Notes
Load the cartridge into a standard caulk gun and apply to clean, dry masonry or wood surfaces. Common issues include poor adhesion on damp substrates and cracking if the joint moves before the cement cures fully.
Highlights
- High temperature resistance protects masonry and wood
- Silicate cement formula withstands extreme heat conditions
- ASTM E136 standard confirms fire-resistant performance
- 10 oz cartridge fits standard caulking guns
- Black colour matches dark mortar and brickwork
Specifications
| Brand | DAP |
|---|
Questions about this item
How does the 10 oz cartridge size translate to coverage on a real repair job?
The 10 oz cartridge provides enough silicate cement for small to medium masonry or wood repairs, such as sealing fireplace joints or filling cracks in high-heat areas, with coverage depending on bead size and joint depth.
What does the ASTM E136 standard mean for actual high-temperature performance?
ASTM E136 confirms the mortar is non-combustible and maintains structural integrity under sustained high heat, making it suitable for fireplaces, stoves, and chimney repairs where direct flame or extreme temperatures occur.
What caulking gun or applicator fits this 10 oz cartridge?
This 10 oz cartridge fits standard manual or pneumatic caulking guns designed for 10 oz cartridges, allowing direct application to masonry or wood surfaces without additional adapters.
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