Bond It Trowel Mastic
- Suitable For: waterproofing, stopping, bedding, pointing, and sealing
- Area of use: EXT
- Application Method: steel trowel/putty knife
- Time to full cure: 24 hours
- Container Type: tin
- Type: mastic
- Colour: black
- Brand: Bond It
- Manufactuer: Bond It
Bond It Trowel Mastic can be applied to most common roofing surfaces including mastic asphalt, roofing felt, corrugated iron, cast iron, fibre/cement, slates, lead, copper, zinc, concrete and timber. Fibre reinforced making it ideal for filling cracks and holes and cures to give a strong and flexible compound.
Storage Life
Minimum of 5 years from date of manufacture under good storage conditions in original unopened containers. Store under cover away from sources of heat and ignition. Keep containers sealed when not in use.
For all other Bond-it products on our website, please click here. For our full range of roofing products, click here.
For any further information you may need on Bond-it, please visit their website here.
Bond It Trowel Mastic is a multi-purpose trowel grade material for waterproofing, stopping, bedding, pointing, and sealing.
It can be applied to mastic asphalt, roofing felt, corrugated iron, cast iron, fibre cement, slates, lead, copper, zinc, concrete and timber
APPLICATION
Apply with a steel trowel or putty knife.
Cracks & holes: Force the compound into the crack leaving slightly proud at the centre. For large cracks and holes apply the compound over the area to be treated and embed a closely woven glass fibre membrane into the compound to overlap the crack or hole by approximately 50mm. Allow to dry and then apply a second coat fully covering the reinforcing membrane.
Corrugated iron/fibre cement sheeting: Tighten loose hook bolt and trowel around with TROWEL MASTIC. Remove loose screws then re-bed both screws and washers in TROWEL MASTIC and tighten. Top seal and trowel to a smooth finish. If a sheet is cracked clean, prime and apply a bandage strip of woven glass membrane embedded in TROWEL MASTIC. Allow to dry and then overcoat. Where required use the same technique to seal side and end laps in corrugated sheeting.
Tiles: Use TROWEL MASTIC to point up butt ends of ridge tiles, fillets and slates.
Lead and zinc: Trowel over cracks and pinholes, where necessary reinforce with a woven glass fibre membrane embedded in TROWEL MASTIC and overcoat.
Felt: Re-adhere loose felt (especially flashings and details) and seal joints with TROWEL MASTIC. Note: this material should only be applied to surfaces that are completely dry and great care should be taken to ensure that when applied to bitumen felt no moisture is contained within the felt.
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| Elementlength | |||||||
| up to 1,5 m |
up to 2,5 m |
up to 3,5 m |
up to 4,5 m |
up to 2,5 m |
up to 3,5 m |
up to 4,5 m |
|
| Type of window frame material |
Minimum witdth of joints for a butled mounting b in mm |
Minimum witdth of joints for a inner mounting b in mm |
|||||
| Hard PVC (white) | 10 | 15 | 20 | 25 | 10 | 10 | 15 |
| Hard PVC and PMMA (dark) (colour extruded) |
15 | 20 | 25 | 30 | 10 | 15 | 20 |
| Hard PUR integral foam | 10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Wood-aluminium-window | 10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Aluminium-plastic sandwich frame (bright) |
10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Aluminium-plastic sandwich frame (dark) |
10 | 15 | 20 | 25 | 10 | 10 | 15 |
| Wooden window frame | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
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Anonymous (verified owner) –
Very quick delivery. Tin dented on lid but as using all at once, not a problem.