Rampf Raku-Tool PH 3977 / PF 3701-2: Two-component, unfilled polyurethane, can be filled with AC-9004. Fast cure and fast demold.
The processing and material temperature should be between 20-25 ºC.
The A component needs to be stirred well before use as some fillers might be prone to sedimentation. The fillers should first be mixed into the individual A and B components in a way so that the two components have about the same viscosity. This allows for easier and better mixing of the two components afterwards. With a bit of practice it is possible to mix small quantities of unfilled A and B and then add the filler without the pot life being too short for the casting process.
Original containers should be kept tightly sealed and stored at ambient temperatures (15°C to 30°C). If properly stored the products have the shelf-life indicated on the product label. Partly used containers should always be sealed appropriately and used up as soon as possible.
Good workplace ventilation is to be ensured during processing. At the same time, the employer’s liability insurance association’s industrial hygiene safety regulations regarding the handling of reaction resins and their hardeners are to be observed. Please take heed of the appropriate safety data sheets.
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