Release Agent PVA

R34.50R398.59 incl VAT

All prices shown include VAT

PVA (Poly Vinyl Alcohol) mould release agent can be applied by hand or sprayed on to a wide range of tooling surfaces to provide a reliable release barrier for polyester, vinyl ester and epoxy composites. PVA is often used in conjunction with run in wax, especially on new or reconditioned moulds or when using potentially incompatible resin systems for the mould and the part (such as using polyester moulds to make epoxy parts for example). If the mold is seasoned, then the use of PVA is not absolutely necessary except as additional insurance against sticking as long as wax is applied properly and with sufficient frequency. If the mold is very large or intricate PVA can be sprayed into hard-to-reach crevices and forms a visible barrier which can be seen on the mold surface. Application is critical and PVA should be applied over a non silicone surface to avoid fish eyes. PVA when correctly applied is unlikely to fail as a release agent although any runs or drips in the film will print onto the part and need to be polished away. For this reason, PVA is often only used for the first few releases or when release problems are more likely. PVA is water soluble, so following demoulding, wash the mould surface using warm water to remove the residual PVA and dry completely.

Safe & Secure

Safe & Secure Shipping to all South African addresses.

When Do I Get It?

Shipping time is 2 - 5 business days. Excludes weekends & Public Holidays.

100% Secure

We ensure secure payment with PEV on all orders

In-Store Sales

Shop in-store at AMT Composites in Johannesburg, Cape Town & Durban.

Please note

Our website reflects stock availability for our Johannesburg AMT Composites physical store. Please contact us to check availability for our Cape Town & Durban stores.
  • Shipping may only be to a physical address within the borders of South Africa. No P.O Box’s allowed.
  • Shipping to outlying or remote areas like farms and game reserves may attract an additional fee.
  • The delivery time to city areas is usually between 2 and 5 working days*. This excludes weekends and public holidays. *Reckoned from time of dispatch to time of arrival to client. This is an estimate and not guaranteed.
Courier Service
We use 4 courier companies for delivery. With sophisticated track and trace equipment, you can pinpoint exactly where your parcel is, from the moment it is dispatched by us, until it’s safely handed over to you the recipient. Your parcel is well packaged and wrapped before delivery. All parcels can be insured for the journey to your door.

We charge a weight based shipping fee.

  1. Free Shipping for all orders R2,500 or more!
  2. Standard Shipping 0 to 5kg – R99.00
  3. Shipping Shipping 5.1 to 10kg – R118.00
  4. Standard Shipping 10.1 to 15kg – R140.00
  5. Standard Shipping 15.1 to 20kg – R180.00
  6. Standard Shipping 20.1 to 40kg – R220.00
  7. Standard Shipping 40.1 to 80kg – R250.00
  8. Standard Shipping 80.1kg 100 – R400.00
  9. Standard Shipping 100.1kg to 130kg – R517.50
  10. Standard Shipping 130.1kg to 160kg – R667.00
  11. Standard Shipping 160.1kg to 190kg – R747.50
  12. Standard Shipping 190.1kg to 230kg – R874.00

Shipping rates are provided at checkout.

Our delivery service only runs from Monday to Friday. Saturday morning deliveries can be done by special arrangement only and at an additional charge. Please contact us to arrange. We reserve the right to re-quote the delivery fee should this become too expensive.

At AMT Composites we want you to be 100% happy with any purchase you make from us.

Changing your Mind / Right to Cancel

If you change your mind for any reason, goods can be returned to us for a full refund if notified to us within 7 days of delivery; you have a further 7 days to dispatch the goods for their return to us. Goods returned after 7 days will incur a 15% restocking fee of the items being returned.

NO GOODS manufactured or sold by Advanced Materials Technology Pty Ltd will be accepted for a credit if returned after one (1) calendar month of original invoice date.

To return goods that are not faulty (i.e. because you changed your mind) they must be unused and, in the condition, they were delivered to you in. This does mean that, unless found faulty, we are unable to accept returns for:

  • Opened containers of resin, hardener, silicone or chemical release agent, unless found to be faulty or defective.
  • Unrolled and improperly re-rolled fabrics, unless found to be faulty or defective.
  • Any product that you have subsequently cut, shaped, broken or modified, unless found to be faulty or defective.

Refund of Delivery Charges (Cancelled Orders)

If you return an order in its entirety, then your outbound delivery charges will also be refunded (for orders within the South Africa’s Local Area’s.

If you return only part of an order, then the outbound delivery charge refund will be calculated based on the total postage cost of the original order (using standard service) minus the cost to send the items you are keeping (using standard service). Due to the way that shipping costs are incremented, this will often result in no delivery charge refund being due.

Faulty or Defective Goods

Any goods found to be faulty or defective and notified to us within 7 days of delivery can be returned to us for a full refund.

Refund of Delivery Charges (Faulty/Defective Goods)

If you are returning faulty or defective goods, then your outbound and return delivery costs will be refunded in full (for orders from within South Africa’s Local Area’s.)

In the event that you are returning faulty or defective goods which were ordered as part of a larger order then the outbound delivery charge refund will be calculated based on the total postage cost of the original order (using standard service) minus the cost to send the items you are keeping (using standard service).

Please check the box to acknowledge our return’s policy, by doing so you agree to our Return’s Policy of AMT Composites stated above.

If a product is backordered and ordered with other products, your order will only ship once the backordered item is back in stock.


Get true expertise & assistance. Speak with one of our professional consultants in Johannesburg, Cape Town or Durban. Call 011 392 4232.


  • Ensure the mould surface is suitably sealed (porous surfaces must be sealed), clean and free from contaminants.
  • Using a lint-free cloth apply PVA to the mould. The red dye allows you to see where the film has developed.
  • Apply to a dry film thickness of at least  50 – 100 µm on new or reconditioned molds and at least 25 – 50 µm dry film thickness on seasoned molds.  The dry film should be continuous and non-porous.
  • Only apply a single coat of PVA as a second coat will dissolve and remove the first coat, resulting in a patchy and uneven surface.
  • Allow the PVA to dry fully before laminating.
  • When re-using a mould you should remove any traces of the PVA using water and clean thoroughly before re-applying PVA.
  • Release of a mould can be assisted using water which will dissolve the PVA and help the mould or part to be released.
  • In order to achieve a matte or non-glossy (i.e. satin finish) you may add silica to PVA solution. Silica is a very fine crystalline compound that does not dissolve in PVA, thus producing the desired texture. Fumed silica should be added at a ratio of 25 grams per 4 liters PVA. Mix immediately before use, and then allow to sit for approximately one minute for air bubbles disperse. Note that the addition of fumed silica will increase the viscosity of the PVA solution and adjustments to spray equipment will be required.
Weight N/A
Dimensions 1 × 1 × 1 cm
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