Bond It Building Mastic Silicone Sealant - Stone

A traditional oil-based, gunnable pointing and sealing mastic for general exterior building use. O...

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B&QB&Q - Building Mastic Silicone Sealant Build-Mate Exterior PointingStone310Ml
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OnBuy.comBond It Build-Mate Building Mastic - Stone Eu3 5060021361585
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Product Information

Full details

This guide is for users of Bond It Building Mastic Silicone Sealant - Stone, a traditional oil-based sealant designed for exterior building applications. It offers superior adhesion to various surfaces and can be over-painted, providing a weatherproof seal for windows, doors, and building joints. Note that it is not suitable for use with uPVC.

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BrandBond it

Extended Product Information

FAQs

What surfaces can I use this sealant on?

This sealant is suitable for use on metal, wood, and precast building materials. However, it is not suitable for use with uPVC.

Can I paint over this sealant?

Yes, once the sealant has fully cured, you can paint over it with most conventional oil-based paints.

How long does it take for the sealant to cure?

Curing time depends on environmental conditions and the thickness of the application. Allow sufficient time for complete curing before exposing it to weather or painting.

How do I clean up excess sealant?

Clean tools and remove excess sealant with mineral spirits.

Is this sealant weatherproof?

Yes, Bond It Building Mastic Silicone Sealant - Stone is designed to be weatherproof in most applications.

Is this sealant suitable for interior use?

While it can be used indoors, it is primarily designed for exterior applications.

What should I do if the sealant is not coming out of the tube?

Make sure the nozzle is properly cut and that the sealant gun is functioning correctly. If the sealant is too thick, try storing it in a warmer place for a while.

Troubleshooting

Sealant is not adhering properly.

Ensure surfaces are thoroughly cleaned and degreased before application. Roughen smooth surfaces for better adhesion.

Sealant is sagging.

Apply the sealant in thin layers. Support the joint if necessary until the sealant has cured.

Paint is not adhering to the sealant.

Ensure the sealant is fully cured before painting. Use an oil-based paint that is compatible with the sealant.

Pros and Cons

Pros

  • Excellent adhesion to various building materials.
  • Can be painted over with oil-based paints.
  • Weatherproof and suitable for exterior use.
  • Sag-resistant formula for ease of use.
  • Low toxicity for safer handling.

Cons

  • Not compatible with uPVC materials.
  • Specific to oil-based paints; compatibility with other paint types is not guaranteed.
  • Requires proper surface preparation for optimal adhesion.
  • May require more drying time compared to some modern sealants.

Setup, Compatibility & Care

  1. Surface Preparation: Ensure surfaces are clean, dry, and free from loose debris, oil, or grease.
  2. Application: Use a standard sealant gun to apply the mastic. Cut the nozzle to the desired bead size.
  3. Smoothing: Smooth the sealant with a sealant finishing tool or a wet finger for a neat finish.
  4. Curing: Allow the sealant to fully cure before painting. The curing time depends on environmental conditions and the thickness of the application.
  5. Compatibility: This sealant is compatible with metal, wood, and precast building materials. Avoid use on uPVC.
  6. Care: Store in a cool, dry place. Clean tools and excess sealant with mineral spirits. Ensure proper ventilation during application and curing.

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