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Caravan Sealant Strip Caulking Mastic 13mm x 16ft roll

This product is on order with our supplier (if no add to cart button is available, then we are not confident of the suppliers delivery date)

Strip Caulking is a heavy gray mastic, flexible putty tape. It is non-hardening and pliable.

Used under moldings, around windows, doors and vents, waterproofs overlapping metal seams.

Use this instead of Silicone Sealants as it remains pliable and makes vents etc removable.

  • 6.4mm thickness
  • 13mm wide
  • 16ft long (approx 4.8m)


I am preparing my caravan for the caulking tape what are the steps to applying?

  1. scrape, cut away old silicone mastic
  2. clean area with metho or Wax & Grease Remover
  3. Apply mastic and screw in fittings
  4. trim excess mastic away
  5. Brush edge with Wax & Grease Remover to create a seal or my preferred method is to "edge finish" with a very small bead of silicone

Also how long does it require to set/harden?

  1. Mastic doesn't set nor harden it is ready for immediate use.

How long should it last and is it easy to remove and replace later on?

  1. Mastic takes about 8-10 years to dry out and crack.
  2. It is pretty easy to scrape away, clean up and refit.


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Customer Reviews

Based on 8 reviews
Maria Fraser

Caravan Sealant Strip Caulking Mastic 13mm x 16ft roll

Elder Leal (eleal2008)

Caravan Sealant Strip Caulking Mastic 13mm x 16ft roll

Ray Lee (leau585) (Perth, AU)
Air conditioning seal.

Yes turned up Quicker than I thought,pleased with the product .Would deal again with your company if you have the required product..Thankyou..

Mark Clydesdale (Endeavour Hills, AU)
Great products & service

The right product for restoring an old van.

lyn stevens (lysteven_0)

Great product and service