Downloads (2)

This is a chemical product. Before storage or use you must download and read the accompanying safety and technical datasheets.

Safety Datasheet (SDS) - EN695 KB
Safety Datasheet (SDS) - NL745 KB

Specification

Product Data
Max Service Temp100°C
General Properties
Gross Weight0.63kg
BrandXencast

Shipping Information

Hazardous Shipment

This product is classed as dangerous goods for the purposes of transport. When ordering dangerous goods, a minimum order value of $100 (plus shipping) applies.

Shipping to mainland USA only. Dangerous goods may be subject to additional inspection, which can cause a short delay.

For a full information regarding the shipment of dangerous goods to all destinations, see our delivery information page.

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RW4 Spray Wax Release Agent 400ml (13.6oz)

Xencast® RW4 is a very reliable high-build release wax spray suitable for a wide range of mold-release and barrier applications. Its convenient aerosol format makes the wax very easy to apply over complex mold surfaces.

Sold in a 400ml (13.6oz) can.


AVAILABILITY:More than 20 availablefor immediate shipping

PRICE
$23.95
More than 20 availablefor immediate shipping
QTY
EACH
EACH

Trade discounts

0-56+
$23.95$21.85
We won’t be beaten on price!

If you believe you’re buying an equivalent product cheaper elsewhere, contact us to discuss your requirements.

Xencast® RW4 is a very reliable high-build release wax spray suitable for a wide range of mold-release and barrier applications.

RW4 is compatible with all thermoset resin systems including epoxy, polyester, vinylester and polyurethane and is suitable for use on most substrates including rigid metals, plastics and laminates, as well as flexible polyurethane and silicone molds.

The aerosol (spray) format makes the wax easier to apply over complex or intricate mold surfaces than conventional hard wax and has the distinct advantage over PVA release agent in that it won’t fish-eye away from repellent substrates or previous release agents.

RW4 contains no silicone and is suitable for use up to 100°C.

How to Use

New patterns, molds or surfaces will typically require 2-3 coats of RW4. When re-using existing molds, a single application between releases is often sufficient. When applying to new porous or semi-porous surfaces such as wood, MDF or plaster, 4 or 5 coats may be required. Multiple thin applications are preferable to fewer, thick applications.

Hold the can approximately 300mm from the mold surface and spray evenly, keeping the can moving. Ensure complete coverage. Allow each coat to dry for 10 minutes between applications. Once dry, RW4 can be buffed to a high-gloss, or can be left with a light texture.

Always ensure the wax has fully dried (at least 10 minutes after the last application) before casting.

Trade discounts

0-56+
$23.95$21.85
We won’t be beaten on price!

If you believe you’re buying an equivalent product cheaper elsewhere, contact us to discuss your requirements.

PRODUCT VIDEOS(2)

Xencast® RW4 is a very reliable high-build release wax spray suitable for a wide range of mold-release and barrier applications.

RW4 is compatible with all thermoset resin systems including epoxy, polyester, vinylester and polyurethane and is suitable for use on most substrates including rigid metals, plastics and laminates, as well as flexible polyurethane and silicone molds.

The aerosol (spray) format makes the wax easier to apply over complex or intricate mold surfaces than conventional hard wax and has the distinct advantage over PVA release agent in that it won’t fish-eye away from repellent substrates or previous release agents.

RW4 contains no silicone and is suitable for use up to 100°C.

How to Use

New patterns, molds or surfaces will typically require 2-3 coats of RW4. When re-using existing molds, a single application between releases is often sufficient. When applying to new porous or semi-porous surfaces such as wood, MDF or plaster, 4 or 5 coats may be required. Multiple thin applications are preferable to fewer, thick applications.

Hold the can approximately 300mm from the mold surface and spray evenly, keeping the can moving. Ensure complete coverage. Allow each coat to dry for 10 minutes between applications. Once dry, RW4 can be buffed to a high-gloss, or can be left with a light texture.

Always ensure the wax has fully dried (at least 10 minutes after the last application) before casting.

Downloads (2)

This is a chemical product. Before storage or use you must download and read the accompanying safety and technical datasheets.

Safety Datasheet (SDS) - EN695 KB
Safety Datasheet (SDS) - NL745 KB

Specification

Product Data
Max Service Temp100°C
General Properties
Gross Weight0.63kg
BrandXencast
Can’t find the answer you’re looking for?Ask our technical team a question.

Hi Tom, I guess the answer to this is yes *and* no. Although we don't tend to use it much for its gloss properties, RW4 is highly polishable and can be taken to a mirror gloss, in the same way that a hard wax (such as #8 wax) can, so from a perspective of the glossiness of the surface, yes, RW4 will certainly 'gloss up' the surface of sheet wax.

That said, the problem with the surface of sheetwax is generally not its glossiness (although - for sure - it's not glossy), it's more a case that the wax itself, and the application process of it, tends to produce a very subtle, but detectable, undulation in the surface. My suspicion would be that application of the RW4 onto sheetwax will definitely make it more shiny (and massively improve the way that the sheetwax removes from the mould) but is unlikely to make the surface much flatter. The end result being shinier but still imperfect.

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Customer Product Reviews for RW4 Spray Wax Release Agent 400ml (13.6oz)

4.5/5 Average rating
15/6/2025
|
Leo D.
|

This may be my favorite Easy Composites product. All I need to say.

17/11/2022
|
Eduardo S
|

very good and easier to apply

25/5/2022
|
Tom N
|

Takes a while to build up confidence in a product. But totally amazed by this. The spray finish isn't a textured as I thought and released perfect. Would use this over pva any day.

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Shipping Information

Hazardous Shipment

This product is classed as dangerous goods for the purposes of transport. When ordering dangerous goods, a minimum order value of $100 (plus shipping) applies.

Shipping to mainland USA only. Dangerous goods may be subject to additional inspection, which can cause a short delay.

For a full information regarding the shipment of dangerous goods to all destinations, see our delivery information page.

Package Size

There are no package size restrictions or surcharges for this product.

Delivery Cost

To find the cost for delivery of this item to your address, add it to your cart then use the instant shipping calculator on the cart page.

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