Interior Internal Mastic Sealants

We stock a large selection of mastic sealants specifically for use internally, especially bathrooms, kitchens and wetrooms etc. Other internal sealing applications include window frames, door frames, around fixtures & fittings and floors, skirting boards. Internal interior sealants are usually suited to upvc, most plastics and most metals, wood, stone, ceramic and more (sometimes a primer is needed)  Internal (interior) mastic sealants manufactured by the most trusted names in the interior (internal) nastic sealant business, such as Dow Corning Geocel, Sika Everbuild, Otto-Chemie, Mapei, CT1, Adshead Ratcliffe Arbo, Tremco illbruck and more.   

3C Firestop Silicone Sealant

3C Firestop Silicone Sealant

From £4.76 (inc VAT)
From £3.97 (exc VAT)
Dowsil 785 Interior Acetoxy Silicone

Dowsil 785 Interior Acetoxy Silicone

From £6.02 (inc VAT)
From £5.02 (exc VAT)
Dowsil 817 Mirror Adhesive White

Dowsil 817 Mirror Adhesive White

£7.72 (inc VAT) per Tube
£6.43 (exc VAT)
Dowsil Silicone Rubber Sealant (SRS)

Dowsil Silicone Rubber Sealant (SRS)

From £328.87 (inc VAT)
From £274.06 (exc VAT)