Gate water seal good elasticity and corrosion resistant Gate water seal is an important part of hydroelectric project sluice gate to ensure airtight sealing, the normal operation of the key components of the gates. Gate water seal material according to head height and orifice size, choose the specific condition, the most commonly used is the rubber gate water seal. Gate water seal water-stop rubber or rubber water-stop rubber, its biggest advantage is good elasticity, Adaptive deformation capacity of strong simple structure, reliable sealing water tight; more economical, easy to install replacement of aging resistance, long service life. Sluice rubber seals are produced by our company according to the GB18173.2-2000 standard, according to section divided into p, l, w, ω, φ, v, u, seven types. Each type can be divided into several groups. I type of gate water seal: natural rubber or natural rubber material. SF6674 for large engineering gate; SF6474 applies to medium and small project gates and expansion joints. II type of gate water seal: synthetic rubber or synthetic rubber material. SF6574 It is suitable for water containing a small amount of acid, alkali, oil or water project gate. III SF2050 SF2270 SF2080 clips canvas products for large high pressure gate Teflon composite large gate water seal for the regular start. The advantage of water seal friction coefficient greater than 0.45 per cent to less than 0.15

			Index
No.	Items	Unit	SF6674 (100﹟)	SF6474 (50﹟)	SF6574 (neoprene)
1	Hardness, Shore A	Mpa	60±5	60±5	60±5
2	Tensile strength, min.	Mpa	18	13	14
3	Elongation at break, min.	%	450	450	400
4	Compression set (70℃×22h)max.	%	40	40	40
5	Hot air aging 70℃×96h,max	%	-20-10	-20-10	-20-10
6	Soaked in distilled water s70℃×96h Mass change, max.	%	5	5	5
7	Adhesion Strength Between F4 and rubber,min	KN/M	6	6	6
8	Working under -40-40℃temperature	No crack or hardened

Packing and transportation:

Packing way	Packed in roll or flat sheet,50-100kg/roll or according to specific requests from clients
Packing material	Inner PE film+ outer Woven plastic bags as standard, palletized for extra reinforcement if necessary
Shipping marks	Neutral packing with printed marks.
Delivery time	15 days since receipt of PO and down payment
Freight	Sea(FCL & LCL) or air freight
Special size	We provide cutting services for special sizes
Lamination	We provides extra lamination with PSA, textiles or other materials.

FAQ(Frequently Asked Questions):1. What is the capability of your company ?Skypro is a professional manufacturer of rubber sheet for more than two decades.Top 10 biggest rubber factory in China.2.What is production capability each year?We produce more than 18000 tons of rubber sheet products each year.3.How can I get some samples?We are pleased to offer you free samples. New clients are expected to pay for the delivery cost, this charge will be deducted from the payment for formal order.

About Rubber:

rubber variety(ASTM )		IR	SBR	BR	CR	NBR
chemical structure		Isoprene Rubber,Cis 1,4- Polyisoprene “Synthetic Natural Rubber”	Styrene Butadiene Rubber	Polybutadiene Rubber	Poly-2-chlorobutadiene -1,3 chloroprene Rubber, Neoprene	Butadiene Acrylnitrile Rubber,Nitrile Rubber
main characteristics		high flexibility, good comprehensive physical mechanic performance	better wear-resistant and anti-aging function than NR, lower prices	same wear-resistant with NR and better flexible and lower temperature resistant than NR	good climate resistant, ozone proof, hot resistance and chemical resistant	good oil-resistant, wear-resistant and anti-aging
quality of NR	proportion	0.93	0.94	0.93	1.23	0.96~1.02
	meni adhesive meni adhesive ML1+4100 ℃	45 ~150	30~ 7 0	35~55	45~120	30~100
rubber physical performance	hardness range ( SHORE A )	2 0~100	4 0~100	30~100	45~120	30~130
	anti-tensity (MPa)	7~27	7~24	7~20	7~27	7~27
	elongation rate (%)	100~ 700	100~ 700	100~ 700	100~ 600	100~700
	re-elasticity	excellent +	good	excellent +	excellent	good
	tearing force	excellent	middle ~ good	good	good	good
	wear-resistant	excellent	excellent	excellent	excellent	excellent
	compress & distortion	good	good	middle	good	good
	temperature range(℃)	-75~90	-60~100	-100~100	-50~120	-50~120
	climate resistant	middle	middle	middle	excellent	bad
	ozone proof	bad	middle	bad	good ~ excellent	middle
	electric performance	excellent	middle	good	good	bad ~ middle
	gas penetrating resistant	middle	middle	middle	good	excellent
oil-resistant and acid& alkali resistant	oil-resistant	bad	bad	bad	good	excellent
	fire-resistant	bad	bad	bad	middle	good
	alcohol	excellent	excellent	excellent	excellent	excellent
	MEK	good	good	good	good	middle
	water	excellent	good ~ excellent	bad	good	excellent
	high concentration inorganic acid	middle	bad	bad	middle	middle
	low concentration inorganic acid	good	good	good	excellent	good
	high concentration alkali	good	good	good	excellent	good
	low concentration alkali	good	good	good	excellent	good
application		tyre, rubber shoes, rubber pipe, adhesive tape, air spring	tyre, rubber shoes, rubberized fabrics, sports products, mattress, accumulator shell, adhesive tape	car & air plane tyre, rubber shoes, shock absorber rubber, adhesive tape, rubber pipe	wire sleeve, conveying line shock absorber rubber, window & door wedge, rubber adhesives, rubberized fabrics	oil seal, washer, oil-resistant rubber pipe, printing rubber roller, textile leather roller

Tolerance Table

specification tolerance range:

thickness		width
metric size	tolerance	metric size	tolerance
	±0.1	500~2000	±20
1.0	±0.2
1.5	±0.3
2.0
2.5
3.0	±0.4
4.0	±0.5
5.0
6.0	±0.6
8.0	±0.8
10	±1.0
12	±1.2
14	±1.4
16	±1.5
18
20
22
25
30
40
50

technical index tolerance range: drawing intensity: ≥ MPaproportion: ±0.05g/Cm3hardness: ±5shoreAextending: ≥ % our rubber is free of heavy metal and other hazardous ingrediants withROHS certification: