NEUKADUR PVA Altropol 0.9 kg | Blue release agent

NEUKADUR PVA Altropol - blue film demoulding agent for application control

One of the most common causes of a difficult demoulding is the uneven application of the demoulding agent. A missing or insufficiently covered area may allow the material to be attached to the mould and may compromise the work piece or surface.

NEUKADUR Release Agent PVA from Altropol is a polyvinyl alcohol-based filmogenic demoulding agent, supplied as an aqueous-alcoholic solution coloured in blue. Color allows the operator to visually track the application and identify the uncovered areas more easily.

The product is applied in thin layer with brush and is allowed to start drying before further casting or lamination.

Visual control via blue

On large surfaces, in corners, on the edges or in areas with complex geometry, a transparent agent can be difficult to track. The blue colour of the product allows observation of the brush route and areas already covered.

This visual check helps his operator:

• more easily identify the missed areas;
• follow the uniformity of the layer;
• avoid unnecessary overlap in the same area;
• control application on complex surfaces;
• Observe accumulations or leaks before drying.

Recommended applications

NEUKADUR PVA is intended for processes in which it is necessary to form a film of separation between mould, pattern or support and processed material.

The product may be considered for:

• making molded parts;
• making the molds and models;
• small series protoprinting and production;
• applications in the composite materials industry;
• surfaces where visual coverage control is useful;
• processes in which the use of a filmogenic demoulding agent is desired.

Compatibility with resin, gelcoate, mould and desired finish must be verified by means of a preliminary test carried out under actual working conditions.

Use as a directly applied demoulding agent

From the practical experience gained by Best TOOLS, NEUKADUR PVA was used by clients as a demoulding agent applied directly to the prepared area, without the use of an additional request being a general condition of our recommendation.

The Altropol documentation does not specify, however, whether the product should be used alone or together with another demoulding agent. For this reason, the choice of the system must be made according to the material, the state of the mould, the geometry of the part and the operator experience.

For a new mould, an unknown surface or a critical application, Best TOOLS recommends a preliminary test before production itself.

Practical advantages

• forms a physical separation film;
• blue allows visual control of application;
• helping to identify areas not covered;
• apply manually with the brush;
• can be distributed in thin layer over the entire surface;
• is suitable for operators who wish to visually track the coating of the mould;

Application procedure

1. Check that the surface is clean and without dust, dirt or residue that can affect the film.
2. Prepare a clean brush, suitable for surface size and geometry.
3. Apply NEUKADUR PVA in a thin layer.
4. Follow the blue to check the cover of the entire surface.
5. Correct the missed areas and avoid accumulation, leakage or overthick layer.
6. Let the film begin drying before the process continues.
7. Do not apply the casting material over an obviously wet or uneven layer.

Drying time

The Altropol chart does not indicate a numerical drying time for NEUKADUR PVA. The manufacturer states that the product should be applied in a thin layer and let dry.

We don't recommend setting a fixed time by approximation. The drying can vary depending on the thickness of the layer, environmental temperature, humidity, ventilation and mould geometry.

Continue the process only after the film is uniform and no longer shows clearly wet areas.

Main characteristics

• Manufacturer name: NEUKADUR Release Agent PVA.
• Manufacturer: Altropol Kunstoff GmbH.
• Product type: Filmogen demoulding agent.
• Base: polyvinyl alcohol.
• Form: aqueous-alcoholic solution.
• Color: blue.
• Application indicated by the manufacturer: with brush.
• Recommended thickness: thin layer.

Best TOOLS Recommendations

For constant results, treat the application of the demoulding agent as a technological step, not as a simple brush operation.

• Clean and check the surface before application.
• Use a clean brush suitable for mould geometry.
• Apply the layer in the same direction without excessive pressure.
• Use the blue color to control the cover.
• Check the edges, corners and deep areas separately.
• Perform a preliminary test on each new combination of mould and material.

Common

Conclusion

NEUKADUR PVA Altropol is a polyvinyl alcohol-based filmogenic demoulding agent designed for thin brush application. His main practical advantage is the blue color, which allows visual control of the coating and helps the operator to observe uneven or omitted areas.

Careful application, proper drying and a preliminary test are essential for establishing the compatibility of the product with the mould, cast material and the desired end result.