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| Customization: | Available |
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| Adhesion Strength: | High Strength |
| Applicable Materials: | General Purpose |
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Topsen 995 is a one-component, neutral-cure, room-temperature vulcanizing (RTV) silicone structural sealant specifically formulated for curtain wall construction. It offers excellent adhesion, weather resistance, and long-term durability, making it ideal for structural bonding and sealing of glass curtain wall systems.
-Appearance: Smooth paste
-Color: Transparent, black, white, grey or as requested
-Skin Time (at 23°C, 50% RH): 20-30 minutes
-Curing Rate: Approximately 2-4 mm per day
-Hardness (Shore A): 35-45
-Tensile Strength: ≥ 0.9 MPa
-Movement Capability: ±25%
-Temperature Resistance: -40°C to +150°C
-Shelf Life: 12 months (unopened, stored at or below 25°C)
| Product | Senior Neutral Structural Silicone Sealant |
| Model No. | 995 |
| Type | Structural, Neutral |
| Color | Black, White, Gray or as request |
| Usage temperature | +5ºC~+40ºC |
| Applicated temperature | -40ºC~+150ºC |
| Packing | 280ml/300ml/bottle, 24 bottles/carton; 590ml/sausage, 20pcs/carton; 200l/drum |
| Shelf life | 12 months from the date of manufacture |

-Structural bonding in unitized or stick curtain wall systems
-Secondary sealing for insulating glass units (IGUs)
-Glazing and assembly of aluminum composite panels
-Suitable for semi-hidden and fully hidden frame curtain wall designs
How to Use:
-Clean the surface to remove dust, oil, moisture, and loose materials.
-Apply masking tape if necessary to ensure clean edges.
-Cut the nozzle at an angle and load the sealant into a standard caulking gun.
-Apply the sealant evenly.
-Smooth the surface within 5 minutes using a spatula or tool.
-Remove masking tape before the sealant starts curing.
Limitations:
-Not recommended for surfaces that bleed oils or solvents
-Do not apply to wet, frosty, or oily surfaces
-Not suitable for copper, lead, galvanized steel, or other corrosion-prone materials
-Not for use in areas with long-term water immersion
-Cannot be painted
-18 years of manufacturing experience since 2007
-Exported to more than 50 countries
-Complete range of sealants for various applications
-Stable supply, flexible production, and strong technical support
-Dedicated to long-term business partnerships




1. What is your minimum order quantity (MOQ)?
Our standard MOQ is 500 boxes (negotiable), but we offer flexible options for long-term partners. Contact us for small-quantity inquiries.
2. What is your lead time for orders?
Standard products: 3-5 days after order confirmation.
Custom packing: 15-25 days (depending on requirements).
Expedited production available upon request.
3. What payment terms do you accept?
T/T (Bank Transfer): 30% deposit, 70% balance before shipment.
4. Do you provide samples?
Yes! Free samples are available for evaluation (customers cover shipping costs).
5. How do you handle shipping and logistics?
We work with FOB, CIF, or EXW terms and partner with reliable global freight forwarders. Destination port/customs clearance support provided for some ports.
6. What's your warranty/after-sales policy?
Quality Guarantee: 12 months from production date.
Non-conforming products: Replacement or refund upon verification.
Technical support: Dedicated team for application guidance.
7. Can you customize sealant formulas?
Absolutely! We specialize in tailored solutions (color, viscosity, curing time, etc.). Share your specs for a quote.
8. How do I track my order?
You'll receive real-time updates, including:
Production schedule
Shipping documents (BL, packing list)
Logistics tracking number
9. What markets do you serve?
We export to America, Europe, Africa, and Asia, complying with international standards (ISO, ASTM, etc.).