Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. plasticbob69

    Long Fiber reinforced materials

    You'll have to look at the original performance requirements and see why 33% GF nylon product was chosen. Glas reinforced crystalline plastcs do tend to warp if designed improperly. It could be a molding or gating problem is to blame. Check the overall performance of 33% GF nylon vs long strand...
  2. plasticbob69

    Squeaking and crunching plastics

    Use dissimilar plastics if possible. You can use lubricated or "anti-squeak" grades from suppliers like LNP.
  3. plasticbob69

    Help needed for selectiing a plastic resin; PP, Acetal, or ?

    The biggest drawback will be in finding a cost effective flame retardant product. Acetal cannot be made FR. PP can but the cost will be too high. PVC is inherently FR but you will have choose flexible grade. Unfortunately I am not that familiar with PVC. Contact several PVC producer's websites...
  4. plasticbob69

    Low friction plastic

    Ivo, Its true that acetals are inherently lubricious compared to most materials, however, there are enough differences in properties such as HDT, TS & TE that they may not be right for your application. You should consult with a company like LNP that has studied friction and wear. They have...
  5. plasticbob69

    Question on Nylon...

    Dragob, PEBAX is the tradename of Elf Atochem's PEBA (polyether block amide) You can get more info at their site. Best regards,
  6. plasticbob69

    Warpage in plastic

    TOR, When asking for help it's a good idea to explain what you are designing, what environment and loads it will see, and the manufacturing process your plan to use. These questions must be asked before you'll get meaningful help. If you plan to use polypropylene in an injected molding...
  7. plasticbob69

    PLASTIC SPRING MATERIAL INQUIRY

    Acetal copolymer is a very good spring material. Please visit one of the big acetal makers' websites like Ticona or BASF or others.
  8. plasticbob69

    Need a durable platic material.

    It is impossible to specify a material based on the limited info provided. More importantly: what conditions /environment/ mechanical stresses will the part see? There is a very limited number of materials that can be injection molded into 1 inch wall thickness sections, let alone a huge part 4...

Part and Inventory Search

Back
Top