Sealants
Sealants are elastic compounds designed for filling and sealing joints, gaps, and cracks. Unlike universal "DIY" solutions, professional Den Braven sealants are developed for specific, specialized tasks, ensuring reliability in extreme conditions.
Our range focuses on four key areas: high-temperature applications, roofing, bitumen surfaces, and ventilation systems.
Our Sealant Assortment
Choosing the right compound is key to the joint's durability. Standard silicone will not withstand 1200°C, and a heat-resistant sealant is not suitable for a bitumen roof.
Comparison of Key Properties of Den Braven Sealants
| Sealant Type |
Base |
Max. t° |
State |
Key Application |
| Heat-Resistant (1200°C) |
Sodium Silicate |
+1200°C |
Hard, non-elastic |
Static joints: furnaces, fireplaces, fireproof brick. Not for metal. |
| Heat-Resistant (300°C) |
Silicone |
+300°C |
Elastic |
Dynamic joints: metal chimneys, heating units, auto/moto. |
| Roofing |
Synthetic Rubber |
~+70°C |
Elastic |
Roofing work, gutters. Can be applied to wet surfaces. |
| Bitumen |
Bitumen Base |
~+70°C |
Elastic |
Repair of bitumen roofs, adhesion to metal, stone, wood. |
| For Vent Ducts |
(Special) |
~+80°C |
Elastic |
Duct joints (steel, plastic). Approved for **food production**. |
Key Difference: Heat-Resistant (1200°C) vs. Heat-Resistant (300°C)
The most common and costly installation mistake is choosing the wrong sealant for a chimney. These two products, despite both being "heat-resistant," have fundamentally different mechanics.
- Heat-Resistant (1200°C) is a silicate compound. After curing, it **becomes hard, like cement**. It is **non-elastic** and intended only for **static joints** that do not move—for example, sealing masonry or fireproof brick joints.
- Heat-Resistant (300°C) is an elastic silicone. It **remains flexible** even at high temperatures. It is designed for **dynamic (moving) joints**, such as those on metal chimneys or heating units, which inevitably expand and contract during heating and cooling.
Important: Using a rigid 1200°C sealant on a moving metal chimney will lead to cracking and loss of airtightness.
Still have questions? You will find answers to frequently asked questions in our FAQ section.
Assistance in Selecting a Sealant
Standard sealants are available for purchase directly from our online store. If you are unsure which compound to choose for your task—heat-resistant (1200°C), heat-resistant (300°C), bitumen, or a special one for vent ducts—contact us.
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