Roofing felt adhesive.
bitu.®grip is a ﬁbre-ﬁlled bituminous rooﬁng felt adhesive.
- Adhesive for the cold bonding of rooﬁng membranes (malthoids) to substrates and to themselves.
- Can be used to rejuvenate sound old rooﬁng felt.
- Obviates use of hot bitumen.
- Easy-to-apply cold liquid.
- Filled for optimum coverage.
- Asbestos free.
All surfaces to be clean, dry and sound. Surfaces to be treated should be checked by moisture meter and found to be in the ‘safe’ area before coating.
Bonding / Priming
Cementitious surfaces must be primed with abe® bitu.®prime, which must be allowed to dry, before laying malthoid.
Stir well before use.
Practical coverage: 1.2 m2/L.
Application is by stiff brush. malthoid must only be perimeter sealed over about 300 mm width and spot bonded for a ﬁrst layer. Subsequent layers are fully bonded to the ﬁrst layer. malthoid must be laid into still wet adhesive. On timber roofs the ﬁrst layer is laid with perimeter sealing and the rest of the area is nailed at approximately 500 mm centres using corrosion resistant clout nails. Subsequent layers are fully bonded to the ﬁrst layer. malthoid must be laid into still wet adhesive. Bonded joints should be rolled immediately with a 50 kg roller to expel any entrapped air and to ensure good overall adhesion.
bitu.®grip may be used for rejuvenating old, still intact, rooﬁng felts. The surface must be clean, sound and dry. Apply bitu.®grip at approximately 1 L/m over the entire surface. Leave exposed for 4 – 6 weeks and then ﬁnish with a coat of abe® silvakote.
Tools, brushes and mixing equipment should be cleaned immediately after use and before material has set with abe® super brush cleaner followed by washing with soap and water.
Protection / Maintenance on Completion
bitu.®grip is used as a primer and is covered by malthoid.
1 L, 5 L and 25 L containers.
Handling & Storage
Shelf life of 24 months, but shorter if in extreme conditions. Keep tightly sealed in a dry cool place in the original packaging.
Wet material is flammable and toxic.
Health & Safety
Product safety information required for safe use is not included. Before handling, read product and safety data sheets and container labels for safe use, physical and health hazard information. The safety data sheet is available from your local a.b.e.® Construction Chemicals branch.