Semi-permanent release agent for multiple releases per application

Chemlease PMR EZ (PMR-90 EZ) by Chem-Trend is a fast-curing, semi-permanent release agent for composite moulds. One application gives multiple releases, with minimal transfer to the moulded part. It is the highest-slip version in the Chemlease PMR family, mainly intended for closed moulding of abrasive parts or parts with low draft. You apply 4 to 5 coats and can start production after 30 minutes. Available in 3.4 kg.

Key benefits

• Easy to apply: with a cotton cloth, no special equipment needed.
• Multiple releases: per application, with minimal transfer to the part.
• High thermal stability: the release layer is very thermally stable.
• Saves time: less frequent reapplication means less labour time and cost.
• HAP-free: HAPs are not formula constituents. Standard manufacturing may result in trace quantities (less than 0.1 %).

Typical applications

• ✓ Composite moulds in closed moulding processes
• ✓ Parts with low draft
• ✓ Abrasive parts that need a lot of slip

Application

1. Clean the mould surface thoroughly and remove all traces of wax, release agents and sealers, for example with Chemlease Mold Cleaner EZ.
2. Apply the appropriate Chemlease sealer to new or porous moulds first.
3. Make sure the surface is dry and free of contaminants.
4. Saturate a clean cotton cloth (not dripping) and wipe on a smooth, continuous film. Cover no more than 0.6 m² at a time.
5. When the film starts to evaporate at the edge, wipe the surface dry with a second clean, dry cotton cloth. Work in circular movements from the outside inwards until the film is dry and clear.
6. Repeat until the entire mould surface is covered.
7. Apply 4 to 5 coats, allowing 15 minutes between each complete coat.
8. Allow 30 minutes after the last coat for full cure, then start production.

Points to note

• ✓ The release agent is highly flammable. Do not use a heat source with this product and keep it away from sparks, open flames and hot surfaces.
• ✓ Work in a well-ventilated area and wear protective gloves and eye protection.
• ✓ Store the product between 10 and 35 °C in a tightly closed container to prevent evaporation and contamination. If it has been stored cold, let it reach room temperature before use.

Professional support

Not sure whether PMR EZ suits your mould and production process? Email us at info@siliconesandmore.com and we will be happy to help.