Siramico Coatings Liquid Rubber is a premium, one-coat instant waterproofing solution designed to ...Siramico Coatings Liquid Rubber is a premium, one-coat instant waterproofing solution designed to protect flat roofs and a range of other roofing surfaces. Its advanced formula creates a tough, seamless seal that guards against leaks and water damage. Easy to apply and built to last, it’s ideal for both roof repairs and general leak prevention—offering dependable, long-term protection with minimal effort. This 500ml clear coating provides instant leak seal technology, is quick drying, and offers one coat waterproofing sealant.
Siramico Coatings Liquid Rubber Roof Coating | 500Ml - Black / 1LFree delivery in 1–3 days£34.99Visit shop →
Product Information
Full details
This guide is for homeowners and DIY enthusiasts looking for a quick and effective way to waterproof flat roofs and other surfaces. The key benefit is its one-coat, instant waterproofing sealant that provides a tough, seamless, and long-lasting protective barrier against leaks and water damage. A potential caveat is that while clear, it may alter the appearance of some surfaces, and proper surface preparation is crucial for optimal adhesion and durability.
All features
Model Part Number
1256593
Brand
Siramico Coatings
Extended Product Information
FAQs
What is the coverage rate of the 500ml can?
Coverage can vary based on surface porosity and application thickness, but typically a 500ml can is suitable for small repair areas or detailed sealing work. For larger areas, consider the 1-litre or larger options.
Can I apply this over existing roof paint?
Yes, you can apply it over most existing roof paints, provided the surface is clean, dry, and sound. For best adhesion, test on a small, inconspicuous area first.
How long does it take to fully cure?
The drying time is quick, usually touch-dry within 30 minutes to an hour, but full curing can take 24-48 hours depending on temperature and humidity. Avoid heavy traffic or direct water exposure during this period.
Is the clear coating truly invisible?
The clear coating provides a transparent seal. While it aims to maintain the original appearance, it may impart a slight sheen or slightly alter the surface tone depending on the material. Always test on a small area first.
Can I use this on vertical surfaces?
This product is primarily designed for flat roofs and horizontal surfaces. While it can be used on some vertical areas for sealing, its flow properties might make it less suitable for extensive vertical applications without specific support or additional reinforcement.
What is the shelf life of Siramico Coatings Liquid Rubber?
When stored correctly in a tightly sealed container in a cool, dry place, the product typically has a shelf life of 12-24 months.
Troubleshooting
Product not adhering to the surface
Ensure the surface was thoroughly cleaned and dried before application. Re-apply after ensuring proper surface preparation and compatibility.
Uneven or lumpy finish
Stir the product more thoroughly before and during application. Ensure the surface is smooth and free of debris. Apply in consistent, even strokes.
Product remains tacky after drying
This can sometimes occur in very humid conditions or if applied too thickly. Allow more time to cure in dry conditions. Avoid walking on the surface until fully cured.
Visible cracks or gaps after application
The coating may have been applied too thinly or the crack was too wide. Apply a second coat, ensuring full coverage and a sufficient layer thickness, particularly over damaged areas.
Pros and Cons
Pros
Easy to apply, requiring minimal skill.
Fast-acting with instant leak sealing capabilities.
Provides a robust, waterproof barrier.
Reduces the need for multiple coats or complex applications.
Offers long-term protection against water damage.
Cons
Requires thorough surface preparation for best results.
Clear variant may slightly change surface sheen or appearance.
Not suitable for all roofing materials; compatibility should be checked.
May require specific temperature conditions for optimal application and curing.
Cleanup of uncured product can be challenging.
Setup, Compatibility & Care
Setup:
Ensure the surface is clean, dry, and free from dust, debris, oil, and loose material.
Use a stiff brush or scraper to remove any peeling paint or old sealant.
For porous surfaces, a suitable primer may be required (check manufacturer recommendations).
Stir the liquid rubber thoroughly before application.
Compatibility:
Suitable for flat roofs, asphalt, felt, metal, and concrete surfaces.
Always test on an inconspicuous area first, especially on painted or coated surfaces.
Not recommended for use on rubberized asphalt or single-ply membranes without prior testing.
Care:
Store in a cool, dry place away from direct sunlight and extreme temperatures.
Keep the container tightly sealed when not in use.
Clean application tools (brushes, rollers) immediately after use with a suitable solvent (e.g., white spirit) before the product cures.
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