TOPSUR surface finishing

WHEN THE SURFACE BECOMES AN ADVANTAGE

M PECL d.o.o., Slovenske Konjice branch

Services

Do parts stick to your mould?

Do you need better surface quality?

We carry out specialised micro-texturing, texturing and surface finishing of moulds for plastic injection moulding, blow moulding, rubber and liquid silicone rubber (LSR), used to make products for general and medical applications.

Besides improving the appearance of parts, we offer solutions to one of the most demanding problems in production – parts sticking to the mould.

Reducing parts sticking to the mould

Parts sticking to the mould surface is a common and costly problem, especially in LSR and rubber production and in plastic injection moulding.

Difficult demoulding can cause:

damage to and deformation of parts,
a higher number of rejects,
downtime and production interruptions,
additional manual intervention,
longer production cycles,
higher production costs.

With targeted micro-texturing of the mould surface we can, in suitable cases, reduce part adhesion and improve release from the mould.

We adapt the surface texture to the material, part geometry and moulding conditions. Our aim is more reliable demoulding, a more stable production process and fewer unnecessary stoppages.

Micro-texturing and texturing to VDI 3400

We produce surface textures VDI 15–VDI 32 (higher grades are also possible on aluminium moulds) to improve the appearance, feel and functionality of parts.

In suitable applications, our process can be an alternative to:

EDM texturing,
chemical etching,
laser texturing.

We also offer local treatment and adjustment of the micro-texture to individual areas of the mould.

Functional and aesthetic benefits

Reduced adhesion of LSR, rubber and other suitable materials.
Easier demoulding without additional release agents, where the application allows it.
Improved appearance and uniformity of part surfaces.
Less visible marks from previous machining.
Potential reduction of downtime and production scrap.
Tailored surface finishing for demanding production applications.

Do parts stick to your mould?

Tell us about your production challenge. We will help you find the right solution for surface finishing, easier demoulding and better part quality.

Which processes can it replace?

Micro-texturing and textured surface finishing make it possible to produce defined surface textures, improve surface quality and optimise production processes. In suitable applications, they can be an effective alternative to conventional finishing processes.

Conventional process	Replacement potential	Benefits of micro-texturing and texturing
Chemical etching	Very good	VDI 3400 surface textures without chemical etching.
EDM texturing	Very good	Uniform micro-texturing without additional EDM surface treatment.
Laser texturing	Very good	Cost-effective production of uniform, non-geometric micro-textures.
Manual matting and grinding	Very good	More repeatable surface finishing and less manual work.
Removal of the white layer after EDM	Very good	Targeted removal of the recast surface layer.
Fine deburring	Very good	Removal of fine burrs and micro-spikes.
Chemical mould cleaning	Good	Mechanical removal of certain deposits without chemical cleaning agents.
Use of release agents for LSR and rubber	Good	Potential to reduce part adhesion to the mould and ease demoulding.
Conventional sandblasting	Very good	More precise, localised and better-controlled surface treatment.
Surface preparation before coating	Very good	Controlled roughness for better mechanical adhesion of coatings.

What is it suitable for?

With controlled micro-texturing and texturing we treat the surfaces of moulds and industrial products. The process is suitable for improving appearance, creating a defined roughness, removing surface irregularities and optimising the functional properties of surfaces.

Application area	Purpose and benefits
Moulds for plastic injection moulding and blow moulding (Blow Molding)	VDI 3400 textures, matting of cavities and improved part appearance.
Moulds for LSR and rubber	Reduced part adhesion to the mould and easier demoulding.
Medical industry	Precision surface finishing, fine deburring, removal of machining residues and adjustment of the micro-texture of medical components.
Moulds for medical products	Texturing and surface finishing of moulds for injection moulding of medical plastic, rubber and silicone products.
Moulds after EDM	Removal of the white layer and surface improvement after EDM.
Milled surfaces	More uniform roughness and less visible milling marks.
Aluminium moulds	Matting, micro-texturing and more complex textures.
Cutting and stamping tools	Fine deburring and controlled edge rounding.
Copper and graphite electrodes	Removal of loose particles and surface irregularities.
3D-printed metal parts	Removal of powder residues and a more uniform, improved surface.
Preparation before coating	Suitable micro-roughness for better mechanical adhesion of coatings.
Industrial and automotive products	Decorative and functional micro-textures, matting and a more uniform appearance.
Precision metal parts	Fine deburring, local treatment and surface homogenisation.

Surface finishing in the medical industry

Micro-texturing enables controlled surface finishing of small and geometrically complex medical components.

TOPSUR technology includes, among others, the following applications:

Medical product	Purpose of surface finishing
Vascular stents	Fine removal of burrs and laser-cutting residues, and rounding of sharp edges without unwanted changes to the delicate geometry.
Orthopaedic and bone screws	Fine deburring, removal of surface residues and adjustment of surface roughness.
Orthodontic brackets	Removal of fine burrs and surface irregularities on small metal components.
Medical metal parts	Smoothing, polishing, homogenisation and surface preparation for subsequent process steps.
3D-printed medical metal parts	Removal of loose powder, surface finishing and, where required, surface hardening.
Moulds for medical plastic and LSR products	Improved part appearance, a defined texture of the mould surface and potentially easier demoulding.

Benefits for medical production

Controlled treatment of small and complex geometries.
Fine deburring after laser cutting and machining.
Removal of loose particles and production residues.
Controlled roughness and a more uniform surface texture.
Repeatable treatment with properly defined process parameters.
Surface preparation for subsequent treatments and coatings.

Important: Treating medical devices requires appropriate process validation, control of cleanliness and possible contamination, and verification of compliance with the requirements of the specific product. The applications listed are possibilities of TOPSUR technology; the feasibility of an individual service must be checked against the available equipment and the customer's requirements.

We tailor surfaces to your product and production.

Micro-texturing and texturing that combine part appearance with mould functionality.

info@pecl.si | www.pecl.si