What are release agents?
Release agents are liquid or paste-like products that prevent adhesion between two materials.
Processing recommendations
- Shake container well (for liquid products)
- Observe temperature (mould surface + release agent approx. 20 °C)
- Remove residues in the mould with solvent and, if necessary, fine steel wool
- Polish waxes with cotton cloth or cleaning and polishing cloth only
- Wax new moulds several times (see the recommendation for products)
- Remove old release wax layers
The substrate
Release waxes may only be used on oil- and grease-free substrates. Preliminary tests are required for absorbent substrates such as foam, wood, plaster, etc.
GRP surfaces are well suited for moulding. Painted surfaces, e.g. on master models (car parts, etc.) can generally be moulded with all R&G release agents. However, the paint must be sufficiently resistant to the solvents in the release agent. Preliminary tests (test impressions) are recommended.
Separating the moulds
The component can be removed easily if it has been detached from the mould at the edges beforehand. Plastic demoulding wedges in small and large versions help to separate the mould halves. Very thick, large parts can be removed more easily by tapping the part and mould with a rubber mallet.
Release agents
|
Product
|
Suitable for
|
Processing
|
Consumption approx. 1)
(g/m²)
|
Drying time at 20 °C ca.
(min)
|
Soluble in / washable with
|
Processing temperature
(°C)
|
Operating temperature
up to approx.
(°C)
|
silicone-free
|
Release agent Semiperm® Monofilm
(spray can) |
EP, UP, VE, PF |
Spray several times, allow to dry and polish.
Creates a monomolecular film for multiple impressions. |
25 - 30 |
10 |
-- |
15 - 30 |
140 |
yes |
Release spray TRS
(spray can) |
EP, UP, VE, PUR, PMMA |
Spray on, allow to dry briefly and polish |
20 - 50 |
5 |
Cleaning petrol |
15 - 30 |
120 |
yes |
Release wax
(liquid) |
EP, UP, VE |
Apply with a cloth and polish to a shiny finish after drying. |
20 - 50 |
10 |
Cleaning petrol |
15 - 30 |
80 |
yes |
Film release agent PVA
(liquid) |
EP, UP, VE |
Apply one coat with a release agent brush and allow drying |
60 |
15 |
Water |
15 - 30 |
100 |
yes |
Partall® Coverall film PVA
(liquid, solvent-free) |
EP, UP, VE |
Apply one coat with a release agent brush and allow drying |
60 |
15 - 30 |
Water |
15 - 30 |
100 |
yes |
Partall® Hi-Temp-Wax
(pasty) |
EP, UP, VE |
Apply with a cloth, polish to a shine after 1 minute. |
20 - 60 |
1 |
Cleaning petrol |
15 - 30 |
180 |
yes |
Formula Five® Mold release wax
(pastös) |
EP, UP, VE |
Apply with a cloth, polish to a shine after 10 -12 minutes. |
20 - 60 |
10 - 12 |
Cleaning petrol |
15 - 30 |
100 |
no |
PARTALL® Paste #2
(pasty) |
EP, UP, VE |
Apply with a cloth and polish to a glossy finish. Can also be used in combination with Film release agent PVA. |
20 - 60 |
1 - 2 |
Cleaning petrol |
15 - 30 |
60 |
yes |
Nomenclature
EP - Epoxy resin
UP - Unsaturated polyester resin
VE - Vinyl ester resins
PUR - Polyurethane resins
PF - Phenol-formaldehyde resin
1) For smooth, non-absorbent substrates such as GRP (mould resin), otherwise more.
Information on drying time at 60-70 % rel. air humidity
