Sika Ws-305s 600ml High Performance Weather Seal Silicone Sealant for Concrete Durable
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Product Details
| Customization: | Available |
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| Application: | Automobile, Construction, Fiber & Garment, Footwear & Leather, Packing, Woodworking |
| Bonding Function: | Cryogenic Adhesive |
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Room 1905, Block a, Twin Tower, No. 668 Xinzhuan Road, Songjiang District, Shanghai, China
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Basic Info.
- Model NO.
- Sikasil WS-305 S
- Color
- Black,White,Grey
- Composition
- Organic Material
- Morphology
- Solid-State
- Cure Mechanism
- Moisture-Curing
- Cure Type
- Neutral
- Density (Uncured)
- 1.4 Kg/L
- Application Temperature
- 5-40 °C
- Skin Time
- 40 Minutes
- Tack Free Time
- 140 Minutes
- Shore a Hardness
- 35
- Tensile Strength
- 0.7 MPa
- 100% Modulus
- 0.4 MPa
- Elongation at Break
- 450 %
- Tear Propagation Resistance
- 6.0 N/mm
- Service Temperature
- -40-150 °C
- Shelf Life(Cartridge)
- 9 Months
- Shelf Life(Unipack)
- 15 Months
- Mf
- Mixture
- Transport Package
- 20sausages/CTN
- Specification
- 600ml
- Trademark
- SIKA
- Origin
- China
- HS Code
- 3214109000
- Production Capacity
- 100000
Packaging & Delivery
- Package Size
- 8.00cm * 8.00cm * 35.00cm
- Package Gross Weight
- 0.850kg
Product Description
Specification
Chemical base | 1-component silicone |
Color (CQP001-1) | Black, white, grey S1, grey S3, grey S4, grey S6, RAL,7024, ivory, beige, champagne, brown and transparent |
Cure mechanism | Moisture-curing |
Cure type | Neutral |
Density (uncured) | 1.4 kg/l |
Non-sag properties (CQP061-4 / ISO 7390) | Good |
Application temperature | ambient 5 – 40 °C |
Skin time (CQP019-1) | 40 minutes B |
Tack free time (CQP019-3) | 140 minutes B |
Curing speed (CQP049-1) | (see diagram) |
Shore A hardness (CQP023-1 / ISO 7619-1) | 35 C |
Tensile strength (CQP036-1 / ISO 527) | 0.7 MPa |
100 % modulus (CQP036-1 / ISO 527) | 0.4 MPa |
Elongation at break (CQP036-1 / ISO 527) | 450% |
Tear propagation resistance (CQP045-1 / ISO 34) | 6.0 N/mm |
Service temperature | -40 – 150 °C |
Shelf life (CQP016-1) | Cartridge 9 months |
Unipack 15 months |
Packing & Delivery
Sikasil® WS-305 S is a durable neutral-curing silicone sealant with a high movement capability and good adhesion to a wide range of substrates. It is particularly suited as a weather seal for structural glazing, curtain walling and windows.
Advantages
--Meets requirements of GB/T 14683 and ASTM C 920 for Type S, Grade NS, Class 50 (movement capability ± 50 %)
--Very good UV and weathering resistance
--Adheres well to many substrates including glass, metals, coated and painted metals, plastics and wood
--Very good UV and weathering resistance
--Adheres well to many substrates including glass, metals, coated and painted metals, plastics and wood
Areas of Application
Sikasil® WS-305 S can be used for weatherproofing sealing applications where durability under severe conditions is required. It is particularly suited as a weather seal for structural glazing, curtain walling and windows. This product is suitable for experienced professional users only. Tests with actual substrates and conditions have to be performed ensuring adhesion and material compatibility.
Surface preparation
Surfaces must be clean, dry and free from grease, oil and dust. Surface treatment depends on the specific nature of the substrates and is crucial for a long lasting bond.
Application
The optimum temperature for substrate and sealant is between 15 °C and 25 °C.
Sikasil® WS-305 S can be processed with manual, pneumatic or electric driven piston guns.
Joints must be properly dimensioned.
For optimum performance the joint width needs to be designed according to the movement capability of the sealant based on the actual expected movement. The minimum joint depth is 6 mm and a width / depth ratio of minimum 2 : 1 and maximum 4 : 1 must be respected.
Joints deeper than 15 mm must be avoided.
For backfilling, it is recommended to use closed cell, sealant compatible foam backer rods e.g. high resilience polyethylene foam rod. If joints are too shallow for backing material to be employed, we recommend using a polyethylene tape. This acts as a release film (bond breaker), allowing the joint to move and the silicone to stretch freely.
Sikasil® WS-305 S can be processed with manual, pneumatic or electric driven piston guns.
Joints must be properly dimensioned.
For optimum performance the joint width needs to be designed according to the movement capability of the sealant based on the actual expected movement. The minimum joint depth is 6 mm and a width / depth ratio of minimum 2 : 1 and maximum 4 : 1 must be respected.
Joints deeper than 15 mm must be avoided.
For backfilling, it is recommended to use closed cell, sealant compatible foam backer rods e.g. high resilience polyethylene foam rod. If joints are too shallow for backing material to be employed, we recommend using a polyethylene tape. This acts as a release film (bond breaker), allowing the joint to move and the silicone to stretch freely.
Tooling and finishing
Tooling and finishing must be carried out within the skin time of the sealant.
When tooling freshly applied Sikasil® WS-305 S press the sealant to the joint flanks to get a good wetting of the bonding surface. No tooling agents to be used.
When tooling freshly applied Sikasil® WS-305 S press the sealant to the joint flanks to get a good wetting of the bonding surface. No tooling agents to be used.
Removal
Uncured Sikasil® WS-305 S can be removed from tools and equipment with Sika® Remover-208 or other suitable solvents. Once cured, the material can only be removed mechanically.
Hands and exposed skin have to be washed immediately using hand wipes such as Sika® Cleaner-350H or a suitable industrial hand cleaner and water.
Do not use solvents on skin.
Hands and exposed skin have to be washed immediately using hand wipes such as Sika® Cleaner-350H or a suitable industrial hand cleaner and water.
Do not use solvents on skin.
Overpainting
Sikasil® WS-305 S cannot be overpainted.
Application limits
Most Sikasil® WS, SG, IG and WT, silicones manufactured by Sika are compatible with each other.
For specific information regarding compatibility between various Sikasil® products contact the Technical Department of Sika Industry.
To exclude materials influencing Sikasil® WS-305 S, all materials such as gaskets, tapes, setting blocks, sealants, etc., in direct and indirect contact have to be approved by Sika in advance.
Where two or more different reactive sealants are used, allow the first to cure completely before applying the next. Sikasil® WS-305 S may only be used in combination with structural glazing applications after a detailed examination of the corresponding project details.
Do not use Sikasil® WS-305 S on PMMA and PC elements as it may cause environmental stress cracking (crazing).
For specific information regarding compatibility between various Sikasil® products contact the Technical Department of Sika Industry.
To exclude materials influencing Sikasil® WS-305 S, all materials such as gaskets, tapes, setting blocks, sealants, etc., in direct and indirect contact have to be approved by Sika in advance.
Where two or more different reactive sealants are used, allow the first to cure completely before applying the next. Sikasil® WS-305 S may only be used in combination with structural glazing applications after a detailed examination of the corresponding project details.
Do not use Sikasil® WS-305 S on PMMA and PC elements as it may cause environmental stress cracking (crazing).
Shanghai Siway Building Material Co.,Ltd
Shanghai Siway Building Material Co., Ltd., founded in 1984, is one of China's leading silicone sealant manufacturers and ranks among the top ten structural silicone sealant producers in China. With over 220,000 square meters factory area and 12 advanced automated production lines, Siway has an annual production capacity of 20,000 tons.
Siway specializes in R&D, production and sales of high-performance sealants, including structural silicone sealant, weatherproof sealant, neutral silicone sealant, insulating glass sealant, polyurethane sealant, epoxy stone adhesive and PU foam. All products comply with ISO 9001, ISO 14001, Chinese national standards and ASTM standards.
Equipped with a state-of-the-art technical center and advanced testing facilities, Siway ensures stable quality and customized solutions. Siway products are widely used in construction, automotive, electronics and photovoltaic industries, and are exported to Europe, North America, Southeast Asia, the Middle East and other global markets.
Siway is committed to providing reliable products, professional service and long-term partnership worldwide.
Siway specializes in R&D, production and sales of high-performance sealants, including structural silicone sealant, weatherproof sealant, neutral silicone sealant, insulating glass sealant, polyurethane sealant, epoxy stone adhesive and PU foam. All products comply with ISO 9001, ISO 14001, Chinese national standards and ASTM standards.
Equipped with a state-of-the-art technical center and advanced testing facilities, Siway ensures stable quality and customized solutions. Siway products are widely used in construction, automotive, electronics and photovoltaic industries, and are exported to Europe, North America, Southeast Asia, the Middle East and other global markets.
Siway is committed to providing reliable products, professional service and long-term partnership worldwide.
FAQ
Q1: What are your prices?
A: Our prices are subject to change depending on supply and other market factors. We will send you an updated price list after your company contact us for further information.
Q2: Do you have a minimum order quantity?
A: Yes, we require all international orders to have an ongoing minimum order quantity. If you are looking to resell but in much smaller quantities, we recommend you check out our website.
Q3: Can you OEM or ODM?
A: Yes, we have strong developing team. The products can be made according to your request.
Q4:What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,CIP,Express Delivery ;Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,CNY;Accepted Payment Type: T/T,L/C,Credit Card,PayPal,Western Union,Cash, EscrovLanguage Spoken:English,Chinese
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