Technical.

DKL has a highly experienced onsite rubber technologist, who is able to help you with compound design and selection to help get the correct compound for your requirements.

In the design process we use all types of rubber from natural to fully synthetic as well as a range of colours in delivering enhanced performance compounds this includes:

	Natural Rubber	Butyl	Nitrile	Neoprene	Hypalon	EPDM	Silicone	Viton	Urethanes
Tensile Strengtyh (MPa): Economy/Quality	10/21	7/14	7/14	10/21	14/21	7/21	7/10	14	28
Hardness Range (Durom.A)	30-90	40-70	40-95	40-95	40-90	40-90	40-80	55-95	15-95
Adhension to Metals	E	G	E	E	E	G/E	E	F/G	E
Adhension to Fabric	E	G	G	E	G	F/G	E	G/E	VG/E
Tear Resistance	G/VG	G	F	G	F	F/G	P	F	E
Abrasion Resistance	E	G	G	E	E	G/E	P	G/E	E
Compression Set	G	F	G	F/G	F	G	F	F/G	F
Dielectric Strength	E	E	P	G	VG/G	E	G	G/E	E
Electrical Insulation	G/E	G/E	P	F/G	G	E	E	F/G	F/G
Acid Resistance
Dilute	F/G	G	G	VG	VG	VG	VG	E	F
Concentrate	F/G	G	G	G	VG	E	F	E	P
Solvent Resistance
Aliphatic hydrocarbons	P	P	E	F/G	G	P	P	E	G/E
Aromatic hydrocarbons	P	P	G	F/G	G	P	P	E	F/G
Oxygenated (Ketones, etc)	F/G	G	P	P	F	G/VG	F	P	P
Lacquer Solvents	P	F/G	F	P	P	P/F	P	P/F	P
Resistance to
Swell in lub oil	P	P	VG	G	G/E	P	F	E	G/E
Oil and Petrol	P	P	E	G	G	P	F	E	G/E
Animal and Vegetable Oils	P/G	VG	VG	G	G	G	G/E	E	G/E
Water Absorbtion	VG	VG	G	G	VG	VG/E	E	VG	G/F =100°CP
Oxidation	G	E	G	VG/E	E	E	E	O	E
Ozone	P/F	E	F	VG/E	O	O	E	O	E
Sunlight Aging	P	VG	P	VG	O	O	E	O	G
Heat aging(upper limit cont. service)	85°C	120°C	115°C	95°C	130°C	145°C	200°C	200°C	85°C
Flame	P	P	P	G	G	P	F/G	E	F/P
Heat	G	VG	G	VG	E	E	O	O	G
Cold	E	G	F/G	G	G	E	O	G/E	E
Price Range	1	2	2	2	3	1	8	15	4
Temp Rate
Upper Limit	70°C	90°C	140°C	100°C	100°C	100°C	250°C	250°C	70°C
Lower Limit	-50°C	-40°C	-50°C	-40°C	-30°C	-40°C	-60°C	-10°C	-40°C