Mould Release Spray Manufacturer in India
Mould Release Spray Manufacturer in Ahmedabad, India
Mould release spray is a coating applied to the surface of a mould so the moulded part comes out cleanly without sticking. Kothari Polymers’ mould release spray is a silicone-based spray for injection moulding. It provides anti-stick and slip properties, helps reduce sticking and makes demoulding easier.
When should you use mould release spray?
- When moulded parts stick to or tear in the mould
- When starting production with a new or freshly cleaned mould
- When moulds have complex shapes or fine detail
- When you want faster, smoother demoulding between cycles
Where is our mould release spray used?
Our silicone-based mould release spray is mainly used in injection moulding. It can also be used in other moulding and release applications, such as:
- Packaging
- Rubber moulding
- Composite moulding
- Metal casting
- Glass moulding
We also supply mould protector spray for injection moulds.
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What is mould release spray?
Mould release spray is a coating sprayed on a mould surface so the finished part separates easily and cleanly. It reduces sticking and makes demoulding easier.
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Is your mould release spray silicone-based?
Yes. Our mould release spray is a silicone-based spray that provides anti-stick and slip properties.
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Can I paint or print on parts made with silicone mould release spray?
Silicone-based release agents can leave a film on the part that may affect paint or print adhesion. If your parts will be painted or printed afterwards, test a sample first or contact us for advice.
If you are looking for a mould release spray for injection moulding, contact us for a free quote!
How to Choose a Mould Release Spray for Plastic Injection Moulds
Choose a mould release spray based on three main factors: the mould material (steel, aluminium, etc.), the surface finish required on the part, and whether the part will be painted, printed or bonded afterwards. Silicone-based sprays give excellent release and are widely used, but they can leave a film that interferes with secondary finishing. Always test on a sample mould before full production.
Key Selection Criteria
| Factor | What to consider | Recommendation |
|---|---|---|
| Mould material | Steel, aluminium, or other alloys | Most silicone-based sprays work on common injection mould steels and aluminium. Confirm compatibility if the mould has special coatings. |
| Part surface finish | High-gloss, textured, or critical appearance areas | Use a spray that does not leave visible marks or residue. Apply thinly and evenly. |
| Post-processing | Painting, printing, plating, or bonding after moulding | Silicone-based sprays can reduce paint/print adhesion. Test first or ask for a non-silicone / paintable alternative if available. |
| Polymer type | PP, PE, ABS, nylon, engineering plastics, etc. | Most sprays are compatible with common thermoplastics. Always verify with a trial on your specific material. |
| Mould complexity | Deep undercuts, fine detail, or sticky resins | Higher-performance or more frequent application may be needed for difficult geometries. |
Practical tip: Start with a thin, even coat. Over-application can cause surface defects, transfer marks, or increased residue. Frequency of application depends on the mould, resin and cycle conditions — many shops spray before every cycle or every few cycles once the process is stable.
Kothari Polymers supplies a silicone-based mould release spray suitable for injection moulding. If your parts require painting or printing, request a trial sample and test adhesion before committing to production volumes.
Mould Release Spray applications
Our Wide Range of Applications
Agriculture
Injection Moulding
Household & Consumer Products
Blow Moulding
Electrical
PIPE
Packaging
Toys
Frequently Asked Questions
In injection moulding spray is applied on the tool surface before every cycle. It reduces friction, prevents sticking, and ensures smooth ejection of the part by creating a thin release barrier between the mould and the plastic.
Mould release spray uses include:
- Preventing plastic parts from sticking in moulds
- Reducing wear and tear on tooling
- Improving surface finish
- Lowering production cycle time
- Easing release of complex shapes
Mould release silicone spray is widely compatible with many thermoplastics and thermosets, but formulation choice may vary depending on the polymer and processing conditions. Always test before full production.
Application frequency depends on processing conditions and mould design. In injection moulding, it is typically applied before each cycle or as recommended by tooling engineers to ensure consistent release and surface quality.
Yes, many mould release spray manufacturers can provide customised formulations based on specific material types, mould designs, and production environments.
Mould release spray can be bought from industrial chemical suppliers, authorised distributors, and masterbatch and additive manufacturers with industrial supplies. Online marketplaces and direct manufacturer sales are also common channels.
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