Machining UP GM 205 (HM 2472 R)

UP GM 205 is the EN 60893 designation for the same material known under DIN 7735 as HM 2472 R - one and the same product under two standard designations that are both common on the market. It is the R grade of the hartmatte grade UP GM 204 (Hm 2472), with an identical temperature limit class of 155 °C. No separate, publicly available numerical data sheet exists for the specific R grade; the values stated are therefore based on the related grade UP GM 204 (Hm 2472).

We machine UP GM 205 (HM 2472 R) cleanly and accurately with sharp, carbide-tipped tools - sawing, milling, drilling and turning are part of our daily business. Because of the abrasive glass-fibre content, increased tool wear should be expected, which is why we ensure adequate dust extraction. This allows us to reliably manufacture mechanically and electrically resilient insulating and structural parts, from single items to series production.

UP GM 205 (HM 2472 R) is worthwhile whenever a mechanically and electrically high-performance insulating and structural material with an elevated temperature limit is needed – for example:

• Insulating and partition parts in electrical engineering and switchgear construction
• Components requiring flame-retardant behaviour (UL 94 V-0)
• Mechanically highly stressed structural parts in mechanical and plant engineering
• Jig and fixture components
• Applications requiring a temperature limit of up to 155 °C

Component price is determined mainly by sheet thickness or rod diameter, dimensions, material utilisation (offcut), machining effort and batch size. We are happy to quote binding prices on request based on your drawing.

UP GM 205 (HM 2472 R) is not declared suitable for direct food contact. No separate numerical data sheet exists for applications that require a documented, manufacturer-confirmed additional property of the R grade - we recommend consultation in such cases. The material is also unsuitable for continuous use above approximately 155 °C or for transparent or coloured finishes, as the grade is only available in white.

An honest assessment – and how the disadvantages can be viewed in practice:

• Advantage: High temperature limit of 155 °C (thermal class F)
• Advantage: Very good mechanical and electrical properties (manufacturer information)
• Advantage: Flame-retardant (UL 94 V-0)
• Advantage: Thermoset, dimensionally stable
• Advantage: Good machinability
• Disadvantage: No separate, publicly available numerical data sheet for this grade
• Disadvantage: Not declared suitable for direct food contact
• Disadvantage: Glass-fibre reinforcement increases tool wear during machining
• Disadvantage: Only available in white
• Practical tip: UP GM 205 (HM 2472 R) is the right choice for mechanically and electrically resilient insulating and structural parts with an elevated temperature limit of up to 155 °C. Since no separate numerical data sheet is available for the "R" grade, we recommend consultation on the specific requirements for particularly critical applications.