**HW-666 Neutral Silicone Fast-Curing Weatherproof Sealant**
This product is a neutral oxime-based, medium modulus weatherproof sealant specifically designed for efficient construction in cold climates. Its fast curing performance significantly improves construction efficiency while maintaining excellent weather resistance and sealing properties, making it an ideal choice for construction projects.
**Applicable Materials**
- **Metals and Glass:** Aluminum alloy doors and windows, coated glass, galvanized metal surfaces, fiberglass.
- **Ceramics and Plastics:** Ceramic products, most plastic panels.
- **Building Structures:** Anodized aluminum, powder-coated aluminum profiles, non-oily wood, indoor and outdoor glass sunrooms.
- **Combination Materials:** Assembly and sealing of common building materials.
**Product Features**
1. **Fast Curing:** Remains efficient in extreme cold climates, significantly enhancing construction speed.
2. **Excellent Weather Resistance:** Withstands harsh weather conditions and maintains outstanding sealing performance over time.
3. **Strong Adhesion:** Suitable for a wide range of substrates, including metal, glass, and plastic, meeting various building application needs.
4. **Eco-Friendly and Safe:** Neutral curing, odorless, non-corrosive to substrates, and environmentally safe.
5. **Convenient Application:** Single-component design, no mixing required, no shrinkage after curing.
**Usage Limitations**
- Not suitable for projects where the substrate temperature exceeds **50°C**.
- Should not be used in environments where it is completely isolated from air before curing.
**Packaging Colors:**
1. 300ML cartridges, 600ML sausages, 200L drums.
2. Standard colors: Black, White, Gray (Other colors available upon request).
**Shelf Life**
Store in a dry, ventilated environment at temperatures not exceeding **25°C**.
The product has a shelf life of **12 months** from the production date.
| PERFORMANCE DATA |
|
|
|
| Test Parameter |
Unit |
Result Translucent Pigmented |
| As Supplied Tested at 23ºC and 50% RH |
| Specific Gravity |
g/ml |
0.98±0.02 |
1.32±0.02 |
| Flow (sag or slump) |
mm |
0 |
0 |
| Extrusion Rate |
ml/minute |
180 |
123 |
| Skin Time |
minute |
5~10 |
≤60 |
| Tack-free Time |
hour |
≤1.0 |
≤5 |
| Curing time (5mm) |
hour |
≤12 |
≤16 |
| As Cured-after 21 days at 23ºC and 50% RH |
| Durometer Hardness, Shore A |
Points |
28 |
42 |
| Elastic Recovery |
% |
98 |
98 |
| Movement Capability |
% |
±25 |
±40 |
| Tensile/Modulus at 50% Elongation |
% |
0.27 |
0.52 |
| Tensile/Modulus at 100% Elongation |
% |
0.35 |
0.68 |
| Ultimate Tensile Strength |
Mpa |
0.37 |
0.84 |
| Ultimate Elongation at Break |
% |
220 |
420 |
We use raw materials supplied by the world's leading chemical giants,
Chemical material inventory of thousands of tons or more.Have more production capacity than peers.
The adhesive manufacturing process is completely enclosed to prevent external temperatures and various uncontrollable factors from affecting the product quality.
FINISHED PRODUCT STORAGE WAREHOUSE
APPLICATION
Apply to clean, dry and grease-free surfaces. Cut the nozzle at 45°angle to the desired shape and size. For better appearance, cover outside of joint areas with masking tape before application.
Tool immediately after sealant application and remove masking tape before sealant skins.
Caution
Uncured silicone can irritate eyes and skin. If contact is made with eyes, flush with water for 15 minutes and seek medical advice. Use in well ventilated area and keep out of reach for children.
LIMITATIONS
1.Unsuitable for curtain wall structural applicatio
2.Do not use for below ground.
3.Do not use when substrate temperature is above 50ºC or surfaces that are wet, oily, greasy, dusty or dirty.
4.The surfaces coated with paint are unsuitable for sealant.
5.Do not clean or treat the sealant with materials, solvents or cleaning agents that may affect or discolor the sealant, particularly during sealant cure.
Scope of application and application scenarios
STAFF CONSTRUCTION SCENE
PROJECT CASE
HEALTH AND ENVIRONMENTAL INFORMATION
To support Customers in their product safety needs, HONGWAH has an extensive Product Stewardship organization and a team of Product Safety and Regulatory Compliance (PS&RC) specialists available in each area.
EXHIBITIONS
CARGO TRANSPORTATION
FAQ
1. Are you a manufacturer?
Yes. We are a manufacturer of silicone sealant with standardized modern production facilities in Guangdong Province, China. A top 5 high-tech company in the industry.
HONGWAH has a 395,000 square foot silicone sealant factory in Jiangmen, Guangdong, China with 16 years of experience in this manufacturing area.
With a total investment of 800 million RMB, we have provided very high quality services to customers from 50 countries.
Our commitment to product quality and professional production team's honest and uncomplicated manufacturing style ensure our customers' trust in our products' consistent performance and superior performance.
2.How soon can I get an updated quote?
We can provide a quote within no more than 24 hours, provided we know all the details of the requirements.
3. Do you accept private label OEM production?
Yes. We can do OEM for our customers.
4. Can I get a sample before I order?
Of course you can. Generally, we provide 1-5 pieces of free samples. The courier fee is borne by the customer. Thank you for your understanding.
5. How long will it take you to complete my order?
It depends on the quantity of your order. Generally, we only need 5 days to produce 20,000 pieces with a capacity of 1,600 tons a month, after receiving your payment.
6. How do you ensure quality?
We have a strict quality inspection system, from raw materials to finished products, the materials must be checked and signed by QC colleagues.
7.Can I visit your factory?
Welcome. Please let me know your travel plans and we will pick you up and book your hotel.
8.How to find the right sealant?
Please tell me the purpose of your application, the base material, the application method and all your requirements.
Audited Supplier 
The adhesive manufacturing process is completely enclosed to prevent external temperatures and various uncontrollable factors from affecting the product quality.
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