H.B. Fuller Fulaseal PRO 730 Industrial Silicone is a multipurpose one-component RTV adhesive and sealant. It excels in industrial sealing and bonding applications. This formulation creates a tough, rubber-like film. It consistently outperforms standard grade silicones in demanding environments. Its advanced properties ensure reliable performance across various challenging conditions.
General Information of H.B. Fuller Fulaseal PRO 730 Industrial Silicone
This advanced industrial silicone features an acetoxy cure system. It provides rapid curing at ambient temperatures and humidity. Consequently, it forms a durable, permanently flexible bond. The H.B. Fuller Fulaseal PRO 730 Industrial Silicone maintains its integrity across a wide temperature range, from -50°C to 180°C, with short-term resistance up to 205°C for black variants. Furthermore, it exhibits exceptional resistance to weathering and UV radiation, ensuring long-term performance and aesthetic stability. This single-part system simplifies application processes significantly.
H.B. Fuller Fulaseal PRO 730 Industrial Silicone is a sag-resistant material. This characteristic prevents slumping during vertical or overhead applications. Its robust chemical resistance protects against water, salt water, grease, oils, fuels, and mild acids. This makes it ideal for harsh industrial settings where exposure to various substances is common. The product also offers significant dielectric strength and low dissipation factor, enhancing its utility in sensitive electrical applications. This ensures both mechanical and electrical integrity.
Key Features & Technical Benefits
- Acetoxy Cure System: This ensures rapid curing at room temperature, accelerating production cycles.
- Permanent Flexibility: It accommodates ±25% joint movement, preventing cracking and crumbling over time. This extends the lifespan of sealed components.
- Extreme Temperature Resistance: The silicone withstands temperatures from -50°C to 180°C, ensuring reliability in diverse climates and operational extremes. Black variants tolerate up to 205°C for short periods.
- Superior Weathering and UV Resistance: It maintains performance and appearance even with prolonged outdoor exposure. This reduces maintenance requirements.
- High Tensile Strength: The material forms strong, durable bonds, resisting mechanical stresses effectively.
- Excellent Chemical Resistance: It withstands exposure to water, oils, fuels, and mild chemicals, protecting critical assemblies.
- Electrical Insulation Properties: High dielectric strength and low dissipation factor make it suitable for protecting electronic components.
Typical Industrial Applications
This formulation is engineered for the following applications:
- Thread bonding and sealing in industrial machinery
- Sealing and gasketing of industrial machines and equipment enclosures
- Bonding and sealing between aluminum and glass windows in manufacturing facilities
- General purpose industrial assembly and repair tasks
- Protection of electrical components requiring insulation and environmental sealing
About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
- Testing sample quality and verifying product compatibility in our laboratory
- Customizing material formulas for special applications
- Adapting product sizes, quantities, and packaging to meet specific needs
- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
| Property | Value |
| Specific Gravity | ca. 1.04 g/ml |
| Sag | Nil |
| Tooling Time | 5-10 minutes |
| Skinning Time | 20 min (at 25°C, 50% RH) |
| Cure Rate | 3 mm / day (generally) |
| Joint Movement Capabilities | ± 25% |
| Hardness | 25 Shore A |
| Tensile Strength | 2.3 MPa |
| Dielectric Strength | 21.6 kV/mm |
| Dielectric Constant (100Hz) | 2.8 |
| Dissipation Factor (100Hz) | 0.0015 |
| Volume Resistivity | 1.5 x 1015 Ohm.cm |




