Immersed Tunnel Gasket

Model

Series

INDUSTRIAL

Product Description

EPDM RUBBER SHEET FOR WATER-PROOFING

Dongil R&C produce products with stable quality based on technology and knowhow accumulated for some 20 years as a manufacturer only for rubber products. Especially, EPDM rubber waterproof sheet is synthetic polymer used in waterproof in construction and civil engineering. Among synthetic rubber, it is most excellent in weather resistance. This is SINGLE-PLY waterproof sheet produced with the main material of EPDM best fit to waterproof function. Furthermore, variable sizes are available so that custom made is possible.

Maximum available width is 10m and its length can be made according to customer’s requirements.

- Excellent heat resistant and cold resistant

This product is used under 30℃ below zero ~ 80℃ above zero. Accordingly, there is no change in quality in the areas with severe weather
change like tropical regions or polar regions. And this is most proper for Korea with four seasons.

- Excellent aging resistant and durability

Differently from other rubber with double bond, the rubber does not have double bond in molecular skeleton so that it is very stable from
Oxygen, Ozone, and Ultraviolet rays in the air. So this product has most long life and durability among synthetic polymer waterproof sheet.

- Wider width is available

Dongil R&C have joint facility for wider width even 10M. The product with inserted fabric is available.

- Easy adhesion and preventing sliding

Adhesion between sheets is easy because releasing agent is not used and the product has embossed patter.

So this also can be used as rubber sheet to prevent sliding.

- Free from pollution

Because there is almost no change in material under any weather and use condition so that the product is free from pollution.
It is proper for landscaping, agriculture, pond, and construction related to environmental protection.

Reservoir, rooftop and roof, roads, bridge, tunnel etc.

THICKNESS	WIDTH	LENGTH
1.0 mm/ 1.2 mm/ 1.5 mm/ 2.0 mm	1M ~ 1.3M	15M ~ 400M
1.0 mm/ 1.2 mm/ 1.5 mm/ 2.0 mm	2M ~ 10M	10M ~ 100M

General properties of EPDM

NAME		SPECIFIC GRAVITY	HARDNESS	T/S (KG/CM2)	ELONGATION(%)	NORMALLY WORKING TEMPERATURE (°C) HIGHEST	NORMALLY WORKING TEMPERATURE (°C) LOWEST
EPDM	Ethylene Propylene Rubber	0.86~0.87	40~90	50~200	100~500	140	-40

Recommended properties

	ITEM			SPEC.	TEST METHOD
Rubber	Before aging	Tensile strength	㎏f/㎠	More than 80	ASTM D412, KSF4911
		Elongation	%	More than 250	ASTM D412, KSF4911
		Tear strength	㎏f/㎠	More than 25	ASTM D624, KSF4911
	After aging	Change in T/S	%	More than 80% of value before aging	–
	After aging	Change in elongation	%	More than 80% of value before aging	–
	Ozone resistance		–	No crack	ASTM D1149
product	Temp.	Normally working temp.	℃	-40 ~80	–

<Sub-materials>

Dongil R&C supply Sub-materials together with Waterproof sheet.

ITEM	SPECIFICATION	UNIT	STANDARD Q’TY REQUIRED FOR ㎡	USES
Joint sheet	100~200W x 15m	Roll	–	Reinforcement of sheet joint area
Primer	15kg	Can	0.30~0.45	Floor clearance, improvement of bonding strength, preliminary waterproof
Non-woven fabric	–	Roll	1.1	Filtering and Draining, separation between earth and sheet, reinforcement of waterproof
Bond	15kg	Can	0.54	Adhesion of sheet
Butyl tape	50~110W x 1T x 15m	Roll	0.25	Reinforcement of sheet joint area and organization of waterway
Bead	12kg	Barrel	0.06	Finish of reinforced area
Color	16kg	Can	0.45	Improvement of appearance and final waterproof