ACMOS 82-2405 -Wax spray release agent-

ACMOS 82-2405 is a wax-based aerosol release agent, free from silicones and CFC propellants, designed to ensure clean demolding from polyester, epoxy resin, PMMA and polyurethane moulds. Its formula leaves a matte finish without transferring contaminants to the part, making it especially suitable when the final piece is to be painted, coated or bonded afterwards. Cost-effective, reliable and suited to both professional workshops and serial production.

Technical specifications

What it is used for

ACMOS 82-2405 is designed for any laminating, casting or moulding process where clean demolding is required without the risk of silicone contamination. Wax does not migrate to the part the way silicone would, making it the right choice whenever the piece will undergo post-processing.

• Demolding of polyester resin laminates from fibreglass or gel coat moulds.
• Demolding of parts cast with casting resins in rigid moulds.
• Mould protection in epoxy resin composite laminates.
• Moulding of transparent PMMA (acrylic) parts.
• Serial production of polyurethane parts: castings, rigid or flexible foams.
• Building and conditioning new moulds before first production run.
• Mould maintenance between production runs.

How to use it

1. Clean the mould — Make sure the mould surface is clean, dry and free from previous casting residue, dust or grease.
2. Shake the can — Shake the spray can well for a few seconds before use to homogenise the formulation.
3. Apply at the correct distance — Spray from a distance of 25–30 cm, using smooth, continuous movements to cover the entire mould cavity.
4. Allow to dry — Wait for the wax layer to dry completely before pouring or laminating. Under normal workshop conditions, a few minutes are sufficient.
5. Apply multiple coats on new moulds — For moulds being used for the first time, apply 3–4 successive coats, allowing each one to dry before the next. This saturates the mould surface and ensures clean release during the first production runs.
6. Reapply between runs — In serial production, apply a fresh coat every 3–5 cycles or whenever you notice demolding becoming more difficult.
7. Demold carefully — Once the part has cured, demold as normal. The wax layer allows clean release without sticking.

Tips for use

New moulds: saturate the surface properly

A new mould has a porous surface that absorbs wax during the first applications. Do not skimp on the initial coats: apply at least 3–4 layers, allowing each one to dry completely. If you skip this step and start producing too soon, the part may stick and damage the mould. Once the mould is broken in, a single maintenance coat between runs will be enough.

Silicone-free: the part is ready to paint or bond straight away

One of the key advantages of ACMOS 82-2405 over silicone-based release agents is that it does not contaminate the part surface. Silicones create an invisible film that prevents the adhesion of paints, adhesives or coatings, requiring a degreasing process afterwards. With this product, the part comes out ready for finishing. If you need to polish the part after demolding, you can use fine polishing compound or coarse polishing compound depending on the finish level you need.

Storage and basic safety

Store the can upright, away from heat sources and direct sunlight, between 10 °C and 30 °C. As an aerosol, never puncture or incinerate the can even when empty. Work in well-ventilated areas and wear gloves if handling the product intensively.

Frequently asked questions