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FAQs

Frequently asked questions from the world of engineering plastics can be found here.

Stock Shapes

What is meant by short-term service temperature?

Which plastics are resistant to UV light?

Can UV light damage plastics?

Which plastics are stable in hot water and suitable for frequent and repeated sterilisation?

The following plastics are suitable for hot steam sterilisation with different behaviours

DIN- Abbreviation	Works-Nomenclature	Resistance to stress cracking
PVDF	TECAFLON PVDF	++
PTFE	TECAFLON PTFE	+++
PSU	TECASON S	( - )
PEI	TECAPEI	( + )
PES	TECASONE	-
PPSU	TECASON P	+
PPS	TECATRON	+++
PEEK	TECAPEEK	+++

+++ = very good (no danger of stress cracking)
++ = good
+ = average
(+) = sufficiently good (danger of stress cracking)

From +++ to (+) the material sensitivity to sterilisation and the number of cycles decreases because of the increased possibility of stress cracking.

Caution with sterilising.

Please avoid internal stress and critical chemicals.

Which plastics are most wear resistant and suited for sliding applications?

Can the values for the coefficient of friction and abrasion serve as design fundamentals?

What is the difference between PET and PET-P?

What are the tolerances for TECAST tubes?

What are the differences between TECAST T, TM, L and TECAGLIDE?

What is the difference between extruded PA 6 (TECAMID) and cast polyamide PA 6 G (TECAST)?

What is meant by long-term service temperature?

What materials can handle 200° C and higher for long periods of time?

What effects do glass and carbon fibre additives have on plastics?

Are plastics affected by high-energy radiation such as X-ray and gamma radiation?

Can black plastics be used for electrical insulation?

Which plastics are particularly resistant to solvents - alcohol, oil, grease and fuel?

What information is available concerning the chemical resistance of ENSINGER plastics?

Which plastics are easy to bond?

What materials are USP Class VI Biocompatible?

What are the different UL 94 flammability ratings?

Which materials are suitable for permanent food contact in accordance with FDA?

Which is better for use in contact with hot water, TECAFORM AH or TECAFORM AD?

Why Plastic?

What is the difference between acetal homopolymer (TECAFORM AD/ POM-H) and acetal copolymer (TECAFORM AH/ POM-C)?

Machined Parts

When is it necessary to anneal material during machining?

What precaution should be taken when cutting or machining glass reinforced materials?

Why do cracks form in some material when machining?

Which plastics require special conditions when bonding?

Building Profiles

How can I get more information on rolling and painting of polyamide thermal break profiles?

My profiles are 'bubbling' after painting and curing. What is causing this?

How should the building profiles be stored?

Compounds

What is the mimimum order quantity?

Custom Casting

Please contact us.

Industrial Profiles

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Injection Moulding

What is the maximum weight moulded?

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