The chemical used for creating a damp proof course (DPC) is Potassium Methyl Siliconate.
Understanding Damp Proof Courses (DPC)
A damp proof course (DPC) is a barrier implemented in buildings to prevent moisture from rising through the walls via capillary action. This rising damp can lead to structural damage and health issues, making effective damp proofing essential.
Potassium Methyl Siliconate in DPC
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DPC Fluid: Potassium Methyl Siliconate is used in a concentrated fluid form which needs to be diluted with water before application. The reference indicates that the DPC fluid is Potassium Methyl Siliconate in a super concentrated form.
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Chemical Action: When applied to masonry, the diluted Potassium Methyl Siliconate penetrates the material and reacts to create a water-repellent barrier, effectively preventing rising damp.
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Application: The DPC fluid is typically injected into the brick or mortar joints of walls to create a continuous barrier.
Advantages of Potassium Methyl Siliconate
- Effective: It creates a strong, long-lasting, water-repellent barrier that effectively stops rising damp.
- Penetrative: It has good penetration into various masonry types, allowing it to provide a complete moisture barrier.
- Relatively Safe: When used according to manufacturer's guidelines, Potassium Methyl Siliconate has a reasonable safety profile.
How it Works:
- Dilution: Concentrated Potassium Methyl Siliconate fluid is diluted with water.
- Injection: The diluted solution is injected into pre-drilled holes in the wall.
- Reaction: The chemical reacts within the masonry, creating a hydrophobic barrier.
- Moisture Control: This barrier prevents moisture from rising up through the wall.
Summary
| Chemical | Use in DPC | Form |
|---|---|---|
| Potassium Methyl Siliconate | Creates a moisture barrier | Concentrated Fluid |
Therefore, the specific chemical used for DPC, according to the provided reference, is Potassium Methyl Siliconate.
