Description
Chemical release agent suitable for mould and shutter faces prior to casting concrete in order to achieve a clean release. After removal of the formwork, the resultant concrete has a smooth hard uniform finish, with reduced incidence of blow holes. RHEOFINISH 202 can be applied to the formwork by spray in the form of a light uniform mist coating.
Primary uses
RHEOFINISH 202 is formulated for application to plywood, timber, steel and plastic faced formwork and moulds, prior to casting concrete, to ensure a clean release.
Action
RHEOFINISH 202 reacts chemically with cement to impart excellent release properties to treated surfaces. Concrete cast against surfaces coated with RHEOFINISH 202 exhibit a smooth, hard, uniform finish.
RHEOFINISH 202 has no negative effect on the properties of concrete nor will it impair the adhesion of subsequent surface treatments when applied at the recommended coverage rates.
Packaging
210 litre drums. Bulk deliveries available upon request.
Composition
Low viscosity hydrocarbon carrier, blended with a chemically active release agent.
Typical properties*
| Colour: |
amber |
| Specific gravity: |
0.85 at 25°C |
| Chloride content: |
nil |
| Freezing point: |
-10°C |
| Flashpoint: |
66°C |
Standards
Water Research Council approved for use with potable water.
Directions for use
Apply before the first casting and thereafter re-apply immediately after stripping and cleaning the mould.
Lightweight horticultural sprayers are ideal as RHEOFINISH 202 is finely atomised to give a uniform coating. Excessive application should be avoided.
Alternatively, application may be made by a fine haired brush, only a very thin coating should be made and any excess removed.
If after the first application, the RHEOFINISH 202 is completely absorbed into new timber or plywood, a further application should be made before filling the moulds or formwork.
Coverage
The coverage rate for RHEOFINISH 202 is 30 to 70m²/litre when spray applied depending on smoothness and porosity of the formwork used.
Note:
Progressively better results are obtained on plywood and timber moulds as they become impregnated and the operatives become accustomed to working with the release agent. RHEOFINISH 202 in general, may be used over timber moulds. etc., which have been treated with other mould oils, providing excess has been removed.
Equipment care
RHEOFINISH 202 may usually be left in spray guns or sprayers without detriment, but with certain types, there may be some softening of rubber seals with prolonged contact.
Storage
Store under cover, out of direct sunlight and protect from extremes of temperature. Storage life up to 2 years when stored in unopened containers as above.
Failure to comply with the recommended storage conditions may result in premature deterioration of the product or packaging. For specific storage advice consult BASF's Technical Services Department.
Safety precautions
As with all chemical products care should be taken during use and storage to avoid contact with eyes, mouth, skin and foodstuffs (which can also be tainted with vapour until product fully cured or dried). Treat splashes to eyes and skin immediately. If accidentally ingested, seek immediate medical attention. Keep away from children and animals. Reseal containers after use.
Note
Field service, where provided, does not constitute supervisory responsibility. For additional information contact your local BASF representative.
BASF reserves the right to have the true cause of any difficulty determined by accepted test methods.