Dryflex® WS 40E450

Category:	TPE , Thermoplastic Elastomer
Manufacturer:	ELASTO
Trademark:	Dryflex®
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	Z4Egmg_Dryflex-WS-40E450.pdf
PRICE:	Order Products email sales@su-jiao.com

Wechat: WECHAT

Message
With our Dryflex® WS range we have turned the usual water-resistant properties of thermoplastic elastomers (TPE) on their head to create materials that swell up to ten times their volume when immersed in water. These materials have been developed to expand upon contact with aqueous solutions (pH7 to 12) to form a positive seal and prevent the ingress or exit of water. Material Science A range of formulations have been developed to offer swell rates from 300 to 1000% when immersed in water. When there is no longer water present the compound shrinks back to its original size, a process of expansion and contraction that can be repeated an unlimited number of times. The compounds have solid structural integrity; unlike many of the equivalent clay based products which can erode and shatter over time. Compounded in any colour, the water swellable TPE is 100% recyclable and can be processed using conventional fabricating methods, including extrusion and injection moulding. Antimicrobial versions are available. Applications Waterstops, building & construction, water treatment plants, tunnels, drains, sewers, tanks, automotive sealant parts, glazing, headlights and cable protection are just a few of the potential applications for Dryflex® WS materials. We have developed softer grades which offer excellent drapability. They are an ideal choice for water stop applications where the profiles may be coiled or need to be fitted around complex structures.

Message

With our Dryflex® WS range we have turned the usual water-resistant properties of thermoplastic elastomers (TPE) on their head to create materials that swell up to ten times their volume when immersed in water. These materials have been developed to expand upon contact with aqueous solutions (pH7 to 12) to form a positive seal and prevent the ingress or exit of water.

Material Science
A range of formulations have been developed to offer swell rates from 300 to 1000% when immersed in water. When there is no longer water present the compound shrinks back to its original size, a process of expansion and contraction that can be repeated an unlimited number of times.

The compounds have solid structural integrity; unlike many of the equivalent clay based products which can erode and shatter over time. Compounded in any colour, the water swellable TPE is 100% recyclable and can be processed using conventional fabricating methods, including extrusion and injection moulding. Antimicrobial versions are available.

Applications
Waterstops, building & construction, water treatment plants, tunnels, drains, sewers, tanks, automotive sealant parts, glazing, headlights and cable protection are just a few of the potential applications for Dryflex® WS materials.

We have developed softer grades which offer excellent drapability. They are an ideal choice for water stop applications where the profiles may be coiled or need to be fitted around complex structures.

General Information
Features	Recyclable materials Good chemical resistance Good weather resistance Hydrophilic
Uses	Building materials Architectural application field Sealant Application in Automobile Field Water tank Assembled glass
Forms	Particle
Processing Method	Extrusion

Physical	Nominal Value	Unit	Test Method
Density	1.25	g/cm³	ISO 2781
Molding Shrinkage	1.5	%

Hardness	Nominal Value	Unit	Test Method
Durometer Hardness (Shore A)	40		ISO 868

Thermal	Nominal Value	Unit
Service Temperature ¹	-50 - 75	°C

Additional Information	Nominal Value	Unit
Water Swell - 3 weeks (23°C)	450	%

Extrusion	Nominal Value	Unit
Cylinder Zone 1 Temp.	110	°C
Cylinder Zone 2 Temp.	110	°C
Cylinder Zone 3 Temp.	110 - 120	°C
Cylinder Zone 4 Temp.	110 - 120	°C
Die Temperature	130 - 140	°C

Extrusion instructions
Air Cool Only (Must not come into contact with water)

Note Message
1 .	Unstressed Material

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