Our service for you

Do you have questions about our products? Do you want to know which other services we offer? Are you looking for material properties?
Here you will find information and details about plastics and glass products
such as chemical resistance or temperature specifications.
Our FAQs will certainly answer many of your questions!

Repairs
We will gladly carry out repairs on your defective devices. However, the defective items should be clean, sterilized and, if necessary, decontaminated. The repair should also be worthwhile in economic respects.

As we care about the safety of our employees and we are acting responsibly, we reserve the right to demand a certificate of decontamination (clearance certificate).

Return of goods
In the case of complaints, the goods should be returned unused and securely packed in the closed original package – upon agreement with us. Excluded are special productions and customer-specific products.

In order to enable us to process your complaint as quickly as possible, we ask you to provide detailed information on the identified fault.
You are welcome to use our contact form or contact us directly by phone or e-mail – our staff will take care of your request immediately.

Technical information

Glass qualities
Glass type
Linear thermal expansion coefficient alpha (20°C; 300°C) DIN ISO 7991
Transformation temperature
Water resistance
Acid class
Alkali class
AR-Glas®
9.1 • 10-6 K-1
525 °C
3
1
2
DURAN®
3.3 • 10-6 K-1
525 °C
1
1
2
FIOLAX®
4.9 • 10-6 K-1
565 °C
1
1
2

AR-Glas® = soda glass
DURAN® = borosilicate glass
FIOLAX® = borosilicate glass

Plastics resistance chart
Abbreviation
Name
Alcohol
Aldehydes
Alkalis
Ester
Ether
Hydrocarbons
Ketones
EPDM
Ethylen propylene diene methylene rubber
+
+
++
++
o
++
++
ETFE
Ethylene tetrafluoroethylene copolymer
++
++
++
++
++
++
+
FEP
Fluorinated ethylene propylene
++
++
++
++
++
++
++
MF
Melamine resin
++
o
o
o
o
PBT
Polybutylene terephthalate
++
++
+
+
++
+
+
PC
Polycarbonate
+
o
o
++
o
o
o
PE
Polyethylene
+
+
++
+
o
o
+
POM
Polyoxymethylene
+
+
+
o
+
+
+
PP
Polypropylene
+
+
+
+
o
+
+
PS
Polystyrene
o
o
+
+
o
o
o
PTFE
Polytetrafluoroethylene
++
++
++
++
++
++
++
PVC
Polyvinyl chloride
+
o
++
+
o
o
o
SAN
Styrene-acrylonitrile resin
o
o
+
++
o
+
o
UF
Urea-formaldehyde
++
++
o
++
++
++
++

++ = very good resistance
+ = good resistance
o = low to no resistance

Heat resistance and sterilization methods
Abbreviation
Name
Heat resistance in °C (permanent)
Sterilization
EPDM
Ethylen propylene diene methylene rubber
-45 to +150
A, C, D
ETFE
Ethylene tetrafluoroethylene copolymer
-100 to +150
A, C, D
FEP
Fluorinated ethylene propylene
-200 to +205
A, C, D
MF
Melamine resin
-35 to +80
A, C, D
NR
Natural rubber
-40 to +60
C, D
PBT
Polybutylene terephthalate
-45 to +180
PC
Polycarbonate
-135 to +135
A, B, C, D
PE
Polyethylene
PE-LD -50 to +80

PE-HD -100 to +90

B, C, D
PMMA
Polymethyl methacrylate
-40 to +85
B, C
POM
Polyoxymethylene
-40 to +110
A, B (limited), C, D
PP
Polypropylene
-10 to +70
A, B (limited), C, D
PS
Polystyrene
-10 to +70
B, C
PTFE
Polytetrafluoroethylene
-200 to +260
A, C, D
PVC
Polyvinyl chloride
-20 to +70
C, D
SAN
Styrene-acrylonitrile resin
-20 to +85
C, D
UF
Urea-rormaldehyde
0 to +80
B, C, D

A = autoclavable at +121 °C
B = beta sterilized/gamma sterilized 25 kGy
C = chemical (formalin, ethanol)
D = gas (ethylen oxide)

Technical information

Glass qualities
Plastic resistance towards solvents:
Heat resistance and sterilization methods

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