Top Quality Fast Cure White Grey Black Silicone Sealant for construction

1000-49999 Kilograms
>=50000 Kilograms
Min. Order
1000 Kilograms
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Company Information

Shanghai Sepna Chemical Technology Co., Ltd.

CN Manufacturer, Trading Company
Response Time
Response Rate:
US$ 310,000+
5 Years Paid Supplier Supplier Trade Assurance
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Quick Details

Payment Terms: L/C,T/T,Western Union
Supply Ability: 10000 Kilogram/Kilograms per Year
CAS No.: 9009-54-5
Other Names: Gap filler
EINECS No.: 210-898-8
Place of Origin: Shanghai China
Classification: Other Adhesives
Main Raw Material: Polyurethane
Usage: Construction,Transportation
Brand Name: Sepna
Model Number: PU310
Type: self leveing
Product Type: One component
Density(g/cm3): 1.35+-0.1
Tack Free Time(hr): 3
Adhesion Elongation(%): 666
Resilience Rate(%): 118
Curing Speed(mm/24hr): 3~ 5
Elongation at Break(%): 1000
Operation Temperature(&deg;C): 5 ~35
Service Temperature(&deg;C): -40 ~ +80
Packaging Detail: Our product Packaging: aluminium tube; flexible package; barrelled
Product Description
Top Quality Fast Cure White Grey Black Silicone Sealant for construction
One component polyurethane joint sealant is a durable elasticity moisture curing polyurethane polymer based road joint filling material. It is widely applied in filling road joints for the excellent properties and easy application.
Key Features

1. One component

2. Self-leveling

3. High elastic

4. High displacement, fall off, suitable for sealing kinds of concrete road

5. The new and used sealant has good compatibility, easy to repair

6. Excellent water resistant, oil resistant, acid and alkali resistant, resistance to puncture 

Typical Applications

1.Bonding and sealing for the gap of joints of road, airport runway, square, wall pipe, wharf, roof, underground garage and basement. 
2.Sealing for leakage of oil refinery and chemical plant.
3.Bonding and sealing for industrial floor, such as epoxy floor and all kinds of paint surface. 
4.Excellent bonding, sealing and repairing of various kinds of materials, such as concrete building, wood, metal, PVC, ceramics, carbon fiber, glass, etc.
Technical Data Table
Visual inspection
Gery,Uniform Sticky Liquid
Tack Free Time
Adhesion Elongation
(Shore A)
Resilience Rate
Rate (%)
Curing Speed
Elongation at Break
Solid Content
Operation Temperature
Service Temperature
-40~+80 ℃
Shelf life

I Application Points

1. Base surface requirement: dry, clean and non-pollution 

2. Application tools: cutting machine, blower, joint filling machine, brush, shovel knife etc. 

II Application methods 

1. Construction joint cutting: use the cutting machine to cut construction joint according to the designing and Programming, clean the dust and debris in the joint by the tools such as blower, brush and shovel knife. And make joint be dry completely 

2. Backer rod installation: slightly install the polyethylene strip backer rod which the size should be larger than the construction joint, depth designed according to the application condition.

3. Application: 


       a.Clip the end of the sausage and place in barrel gun 

       b.Screw end cap and nozzle on to barrel gun 

       c.Using the trigger extrude the sealant with equal strength

4. Reserve gap: the construction joint will be expanding or contracting with the changing temperature, therefore, after application, the sealant should be installed lower than the concrete surface. 2-3mm in summer, 1-2mm in winter

5. Curing to tack free time, about 6 hours in summer ,12 hours in winter .

III Attention of operation

1. The sealant should be guaranteed in the warranty period before application.

2. This product non-toxic after curing completely, but before curing, please keep it away from eyes and skin. If touch it with eyes and skin, wash immediately and thoroughly with soap and water. If feel uncomfortable, please go to hospital timely. 

Protect the products from stamp,rain,high temperature and heat souce;carefully and slightly move and forbid the products to squeeze and crash

Q: What's your delivery time?

A:  Normally, the delivery time of sample order is 3-7days 

      Bulk order is 10 days after received the PO and deposit

Q: Can I get samples?

A: YES! Usually one piece 600ml Sausage or 1kg tin free sample supplied for your quality check.

 Three ways to get free samples below

 1. Supply us your import express account DHL/Fedex for sample shipping

 2. You can inform your DHL/Fedex to pick up the sample from Sepna factory.

 3. Pay  express fee to Sepna company by Paypal or TT, we will arrange the sample delivery on our side.


Q: What is your MOQ?

A:  Our MOQ is 1000pcs


Q: Can you do OEM lable for the products?

A: YES, the OEM service such as buyer labels are accepted as long as your order reach our standard amount.


Any more questions, please contact us anytime!