Our process allows texture to be applied on many different steel, aluminum, copper, & other tooling materials. We also can apply texture onto plastics parts as a prototype tool for visual evaluation. We have processed many of the following tools:
- Plastic injection
- Blow molds
- Die cast
- Embossing Rolls
- Rotomolds and more
Much design consideration is needed when specifying a pattern / texture for your surface. The following discusses these issues and may lead to more questions and we are glad to assist.
Our texture standards are provided to show a range of popular textures serving various industries, i.e. electronic housings, automotive, and recreational items, etc. We have hundreds of patterns in our library to match industry standards and custom patterns. We also have designed exclusive patterns for customers with specific requirements and applications.
Texture patterns are not only used in cosmetic applications, but for functional purposes. On core sides (B side) texture can be applied as pullers. This is advantageous over grinding in pullers because texture can be uniformly applied instead of risking a heavy line appear on the cosmetic side.
Mold & Texture Designs
- In order to assist with part release adequate draft angles are required for both exterior (plastic is shrinking away from) and interior (plastic is shrinking onto) sidewalls. The minimum draft angle required for exterior sidewalls is 1 ½ degrees per .001” of texture depth. Interior sidewalls require a minimum of double the draft of exterior sidewalls. Please feel free to consult with us on your specific draft requirements.
Directional Patterns vs. Matte Finishes
- Some patterns, i.e. matte finishes, are non directional while directional patterns such as leather grains and geometric patterns require added attention in the design and placement in the mold. We can modify patterns to customize the depths and texture characters to assist with your mold design and requirements.
- Our texturing processes and techniques allows for the use of many different metals. Most pre-hard steel types of P-20, NAK series, Px-5, and similar provide good to excellent etching characteristics. Other tool steels (H-13, A series, S-7) provide fair to excellent etching characteristics with some limitations. In particular, S-7 has a tendency to show its grain structure when etched and should be limited to non textured uses. Stainless steel 400 series provide good to excellent texture results. Aluminum T6 or T7 are popular choices and provide fair to good texture results with some limitations. Cast metals have inherent porosity which prevents it from being a good choice for many texture patterns.
At times different materials make mold components that are mated to each other. It is important for us to have this information to properly prepare and texture the mold materials using different processes and techniques to obtain the best results possible.
(Pre-texture) – Prior to texture most mold finish requirements can be met with a SPI C-3 (320 emery finish) while lesser depth patterns (i.e. .001” or less) will need a SPI C-2 (400 or higher emery finish). EDM and cutter marks prevent the tool surfaces from being textured uniformly. Hence, it is important to identify and remove these surface conditions prior to texture.
A (PDF) Technical Data Sheet is available for download: Tech Data Sheet (rev 7.22.09).pdf
These texture standards are provided for your reference and specifications. The depths specified on these texture standards indicate the texture depths in the tool. These standards are in a removable chip format to allow for user friendly placement for comparisons and evaluations. More texture standards will be added to this library as particular patterns grow in popularity. If you have a specific need for some textures to be provided in different plastic and tool materials please contact us to discuss these options
Please call or contact us to obtain a sample book for your reference or quality library.
Send your e-mail request to: firstname.lastname@example.org