Large Steel Structure Construction Engineering Silicone Caulking Metal Structural Glue Waterproof Weather-Resistant Anti-Cracking Sealant

• Customization: Available
• Adhesion Strength: High Strength
• Bonding Material: Aluminum
• Model NO.: QMS-995
• Color: Black/White /Grey/Transparent, Black
• Usage: Electronics, Construction, Packing, Transportation
• Bonding Function: Structural Adhesive
• Application: Automobile, Construction, Woodworking
• Material: Silicone
• Classification: Room Curing
• Main Agent Composition: Natural Polymer
• Characteristic: Waterproof
• Promoter Composition: Curing Agent
• Composition: Organic Material
• CAS No.: Other
• Formula: Other
• Einecs: Other
• Morphology: Ointment
• Transport Package: Box
• Specification: 300ML
• Trademark: QMAXS
• Origin: China
• HS Code: 3506100010
• Production Capacity: 300000 PCS/Month

Product Description

**QMS-995 High-Performance Structural Sealant**  

The QMS-995 is a premium, single-component, neutral ketoxime-cured structural sealant designed to meet the rigorous demands of modern architectural applications. With medium modulus and exceptional durability, it is engineered for seamless integration of glass and metal components, creating strong, unified assemblies. Its outstanding UV, acid, and alkali resistance ensures long-term reliability, even in challenging environments. Ideal for fully hidden or semi-hidden frame curtain wall designs, the QMS-995 delivers superior structural sealing performance.  

### **Key Features:**  
- **Neutral Ketoxime Cure:** Non-corrosive and compatible with sensitive substrates.  
- **Structural Integration:** Enables glass-to-metal bonding for unified assemblies, meeting advanced design requirements for curtain walls.  
- **Exceptional Durability:** Resists UV exposure, acids, and alkalis, ensuring long-lasting performance.  
- **Weatherproofing Excellence:** Provides robust sealing for harsh environmental conditions.  

### **Applicable Materials:**  
The QMS-995 is suitable for assembly and sealing of:  
- Glass  
- Ceramics and pottery products  
- Fiberglass materials  
- Galvanized metal surfaces  
- Most plastic panels  
- Non-oily wood  
- Anodized or painted aluminum profiles  

### **Use Restrictions:**  
- **Temperature Sensitivity:** Not suitable for applications where the substrate's surface temperature exceeds 50°C.  
- **Curing Environment:** Requires air exposure for proper curing; not applicable in fully enclosed or air-isolated environments.  

### **Shelf Life:**  
The QMS-995 maintains optimal performance for up to **12 months** when stored under recommended conditions.  

With its advanced structural bonding capabilities and outstanding resistance to environmental stressors, the QMS-995 is the ideal solution for modern curtain wall designs and high-performance architectural applications.

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.