General purpose bitumen mastic.
bitu.®seal plastic is a hydrocarbon solvent based, asbestos-free, reinforced bituminous mastic.
- Heavy duty bitumen mastic sealer and repair compound
- May be used to seal most rooﬁng defects: sheeting overlaps, valleys, gutters, downpipes and enlarged screw holes.
- To repair roof cracks, ﬂashings, cracked roof tiles and patch repair to roofs.
- Economical waterprooﬁng compound.
- May be overcoated.
All surfaces to be clean, dry, sound, free of all laitance, grease, oil, fungal growth and loose and ﬂaking particles.
Bonding / Priming
Prime with a coat of bitu.®seal plastic, which should be allowed to dry prior to the application of bitu.®seal plastic, except for steel which must be coated with a suitable anti-corrosion primer like abe® 4-metal primer.
Application thickness: As needed up to 30 mm. Practical coverage for estimating purposes: Full overlap and screw head treatment on corrugated iron roof 150 mm wideroof ﬂashing – 1 L/2.2 m run. In general – 1 L/m2 per mm thickness.
bitu.®seal plastic may be applied by trowel, putty knife, extrusion gun or gloved hand. bitu.®seal plastic can be used in conjunction with glass ﬁbre membrane. The membrane must be set into the still wet ﬁlm of bitu.®seal plastic.
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
Where the bitu.®seal plastic is to be exposed to the effects of sunlight and ultra-violet radiation, it is recommended that 3 – 4 weeks after being applied, it may be coated with abe® silvakote.
1 L, 5 L, 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.
Application Temperature: 5 ºC to 40 ºC, but warm material to at least 10 ºC for ease of use.
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.