Chemical and thermal resistance

The information given is related to plastics used with laboratory glassware.

To complement DURAN® laboratory glassware products as listed in our webshop, various plastic products such as screw caps are available. Their chemical and thermal resistance properties are listed in the following tables.

The values given are only to be regarded as being guidelines to help you determine the appropriate laboraqtory glassware combination for your specific needs. Many factors can affect the chemical and thermal resistance of a given product.

In critical cases it is essential that a test is carried out first under your own laboratory conditions to ensure that the laboratory glassware product you are using is fully compatible with your usage. Suitability of packaging materials for specific product applications must be confirmed by / is the responsibility of the end-user.

Laboratory glassware and plastics


Material code	Material description	Temperature resistance range °C

EPDM	Ethylene/propylene-diene-rubber	-45 to +150
ETFE	Partially crystalline ethylene/tetraflouroethylene copolymer	-100 to +180
EVA	Ethylene-vinyl acetate	-80 to +70
FEP	Tetra-Fluor-Ethylen/Hexafluor-Propylene	-200 to +200
FKM	Fluorinated rubber	-20 to +200
PBT	Polybutylenterephthalat	-45 to +180
PE	Polyethylene	-40 to +80
POM	Polyoxymethylene	-40 to +90
PP	Polypropylene	-40 to +140
PTFE	Polytetrafluorethylene	-200 to +260
PU	Polyurethane	-30 to +135
TpCh260	Thermoplastic/duroplastic -	-196 to +260
VMQ	Silicone rubber	-50 to +200
PSU Compound	Compound polyarylsulfone based	-45 to +180

Chemical resistance of plastics


Classes of substances +20 °C	PE	PP	PBT	PTFE FEP	TpCh260	ETFE

Alcohols, aliphatic	+	+	+ +	+ +	+ +	+ +
Aldehydes	+	+	+	+ +	+ +	+ +
Alkaline solutions	+ +	+ +	+	+ +	+ +	+ +
Esters	+	+	+	+ +	+ +	+ +
Ethers	-	-	+	+ +	+ +	+ +
Hydrocarbons, aliphatic	-	+ +	+	+ +	+ +	+ +
Hydrocarbons, aromatic	-	+	+	+ +	+ +	+ +
Hydrocarbons, halogenated	-	+	+	+ +	+ +	+ +
Ketones	+	+	+	+ +	+ +	+
Acids, dilute or weak	+	+ +	+ +	+ +	+ +	+ +
Acids, conc. or strong	+	+	+	+ +	+ +	+ +
Acids, oxidising	-	+	-	+ +	+ +	+


Classes of substances +20 °C	VMQ	EPDM	PU	FKM	POM	PSU Compound

Alcohols, aliphatic	+	+	+ +	-	+	+ +
Aldehydes	+		+ +		+
Alkaline solutions	-	+ +	+ +	-	+	+ +
Esters	-	+ +	+	-	-	+
Ethers	-	-	+	-	+	+
Hydrocarbons, aliphatic	-	+ +	+ +	+ +	+	+
Hydrocarbons, aromatic	-	+	+ +	+ +	+	-
Hydrocarbons, halogenated	-	+	-	+ +	+	-
Ketones	-	+ +	+	-	+	-
Acids, dilute or weak	-	+ +	+ +	+ +	-	+ +
Acids, conc. or strong	-	+ +	+	+ +	-	+ +
Acids, oxidising	-	-	+	+	-	+

+ +	= very good resistance
+	= good to limited resistance
-	= low resistance