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Moisture curing single part polyurethane varnish ideal for sealing damp porous surfaces prior to using release agent. Used as damp-proof floor sealing, pond sealing, sealing concrete prior to GRP sheathing where alkali in concrete can react with resins.
- Hard wearing.
- Non-porous.
- Quick and easy to apply.
- Can be used at high and low temperatures.
Professional use only - from the 24th August 2023, adequate training is required before industrial or professional use of this product.
Should you require training, visit - https://www.safeusediisocyanates.eu/
Professional use only - from the 24th August 2023, adequate training is required before industrial or professional use of this product.
Should you require training, visit - https://www.safeusediisocyanates.eu/
Bonda G4 Damp Seal is a moisture curing single part polyurethane varnish ideal for sealing damp porous surfaces prior to using release agent. Used as damp-proof floor sealing, pond sealing, sealing concrete prior to GRP sheathing where alkali in concrete can react with resins.
Also an ideal coating for plug surfacing before taking mould as release agents and resins do not attack G4.
Used to improve the bond of GRP to metal. Withstands temperatures up to 200ºC with good chemical resistance.
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Features & Benefits
- Hard wearing
- Non-porous
- Quick and easy to apply
- Can be used at high and low temperatures
Product Specifications
Technical Data | |
---|---|
Bonda G4 Damp Seal | |
Coats | For most sealing purposes 3 coats are recommended |
Drying Time | 60-90 minutes |
Re-coating Time | Each coat can be reapplied when the surface is finger tacky. Do not allow 4 hours to elapse between coats |
Application Temperature | G4 can be applied in poor weather conditions, high humidity and at temperatures down to 0°C. Withstands temperatures up to 200ºC with good chemical resistance |
Coverage | 500g/sq.m |
Maintenance | Not applicable |
Compatibility | Compatible with G4 Thinners |
Settlement | Shake well before use |
Shelf Life | Many years if suitably stored unopened in original container. NOTE; this is a moisture hardened product so storage life of opened tins is limited |
Application
- G4 should be applied onto a bare, clean, and dry substrate
- Existing coatings, paint or other treatments should be removed
- Any loose pointing in brick work should be replaced or worn areas in floors repaired
Health and Safety
- Flammable
- Irritant
- Avoid contact with eyes and skin
- Wear protective gloves and eye protection
- In case of contact with eyes, immediately rinse with plenty of water and seek medical attention
- After contact with skin, wash immediately with soap and water or a suitable skin cleanser
- Keep out of reach of children
- Avoid ignition sources
- Do not spray
- Do not inhale vapour
- Further information can be found in the product data sheet and safety data sheet
Data sheet
- Manufacturer
- Bonda
- For Use By
- Consumer Use
- Interior / Exterior Use
- Interior & Exterior
- For Use On
- GRP, Metal, Concrete
- Single, Two or Three Pack
- Single
- Pack Size
- 500gm, 1kg, 2.5 kg, 5 kg, 25 kg
- Coverage
- 500g/sq.m
- Min. Application Temperature
- G4 can be applied in poor weather conditions, high humidity and at temperatures down to 0°C. Withstands temperatures up to 200ºC with good chemical resistance
- Heat Resistance (up-to)
- 200°C
- Shelf Life (from date of manufacture)
- Many years if suitably stored unopened in original container
- UN Number
- UN1263
- Drying time
- 60-90 minutes
- Suitable For Use On
- Concrete
- Suitable For Use On
- Brick
- Suitable For Use On
- Plaster
- Suitable For Use On
- GRP Glass-Reinforced Plastic
- Suitable For Use On
- Floors
- Suitable For Use On
- Ponds
- Application Method
- Brush
- Application Method
- Roller
- Components
- 1K
- Product Usage Type
- Sealer
- Product Range
- G4
- Colour Family
- Clear
- Product Type
- Polyurethane
Questions
Question about the product
Mark Petersen on 2023-10-19 19:32:36 | Question:
Dear Sirs, Can this product be spray applied with an air cylinder compressor to external limestone walls. ? I have spray applied Thompsons waterproofing solution and other similar products and used G4 pond sealers previously Thank you kindly Regards Mark T 07801 236174 |
Answer from Rawlins’ Technical Team:
Assuming the substrate is clean, dry, sound and prepared in accordance with the technical datasheet, this product is suitable. We'd recommend thinning with Bonda G4 Thinners, this allows spray viscosity, however the degree of thinning depends on the equipment used and the operator. Due to thinning, it will be necessary to apply additional coats of Bonda G4 Damp Seal. We'd also recommend suitable respiratory protection such as an air-fed mask and PPE for the applicator. | |
peggy morris on 2023-03-09 12:27:29 | Question:
Is this product suitable to seal an indoor exposed cob wall that I can then paint with a matt/silk emulsion paint. |
Answer from Rawlins’ Technical Team:
While this product once fully dried can be sanded, washed down and painted, it has not be tested for this application to cob. We would recommend to test on a small area for compatibility and adhesion prior to full application. | |
Matthew on 2022-04-13 22:55:23 | Question:
Can i use this to seal interior plaster wall before painting with matt emulsion interior paint? |
Answer from Rawlins’ Technical Team:
Assuming you are wanting to seal an area of existing, aged plaster due to an isolated and rectified damp issue, we would suggest something like Coo-Var Anti-Damp Paint would be more suited to this type of application. However, if you just have new/bare plaster that you do not have any dampe issues with and simply wish to prime/seal before painting or papering then Zinsser Drywall Pro 2 in 1 would be the more suitable option. | |
Ronnie Durkan on 2021-08-30 14:18:35 | Question:
Can I plaster onto g4 damp proofing sealant? |
Answer from Rawlins’ Technical Team:
It is possible to plaster surfaces that have been treated with Bonda G4 Damp Seal. | |
IMPORTANT SHIPPING & DELIVERY INFORMATION
Bonda G4 Damp Seal is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
All delivery costs below are excluding VAT