New Energy

H.B. Fuller’s PHOTOCAP® encapsulants are a field-proven product backed by over 45 years of experience. H.B. Fuller PHOTOCAP® encapsulants consistently exceed the industry standard with evidence from our performance and long-term reliability studies.

We are the premier best choice of PV module manufacturers in the world, and we offer a full line of superior sealing and bonding solutions for crystalline silicone PV modules, bonding and sealing solutions for frameless PV modules, and sealing and bonding for PV system installation.

Our solar panel frame sealing solutions connect the frame and the component, with permanent anti-environmental aging properties. These sealants furthermore maintain long-term reliable pv system sealing and bonding and prevent PV modules from being affected by the external environment.

All of our solar panel frame sealing products and solutions utilize the best in dispensing equipment and tools, and furthermore are durable, reliable, and efficient.

H.B. Fuller’s clean solar energy bonding solutions are used to temporarily bond mono crystal and poly crystal PV silicone ingot. It can help improve production efficiency and enhance product yield rate.

H.B. Fuller offers frame sealant as the key material for connecting the frames and components as well as the J-box and backsheet. Its ingot bonding properties cannot be affected negatively by sunlight, temperature variation, wind, rain, snow covering, ice coating, moisture, salt mist, microorganisms, etc. With permanent anti-environmental aging properties, TONSAN sealants can maintain long-term reliable sealing and bonding, prevent the modules from being affected by the external environment and realize consistent stable electricity generation

Product characteristics include:

• Long-term resistance to harsh weather
• Excellent adhesion to anodized aluminum frame, glass, J-box and photovoltaic substrates
• Excellent resistance to mechanical load
• Good thermal deformation compensation
• Superior insulation and frame resistant properties
• Conforms to the testing requirements of UL1703, IEC61215, IEC61730, GB/T 29595 standards

This solution for junction box potting improves the insulation grade of the J-box and the head dissipation while avoiding the risk of diode failure as a result of overheating, and ultimately reduces the overall cost. We offer the TONSAN 1521 and 1533 compounds for pv junction box potting, which greatly decrease the working temperature of the bypass diodes so as to increase the safety and reliability of the J-box.

Product characteristics of the silicone potting compound include the following:

• Excellent fluidity and easy gap-filling
• Excellent dielectric properties and flame retardancy
• Good thermal conductivity
• Excellent resistance to harsh weather
• Suitable for the automated mixing and dispensing
• Excellent compatibility with EVA, ribbon and J-box materials

PV module edge sealing can effectively prevent outside moisture or other substances from having negative influence on the frameless PV modules, and furthermore strengthens insulation protection. By bonding and sealing the two glasses, you protect the PV chips from moisture in the air.

At H.B. Fuller, we have the premier materials used for reliable sealing of the main roof structure to prevent water permeation during residential and utility PV roof installation.

Elastic bonding is needed for back rail bonding between the frameless PV modules and back rails to compensate for the deformation caused by temperature variation in outdoor environments, while simultaneously satisfying the mechanical load requirements. The back rail bonding adhesive has excellent elastic deformation ability and high bonding strength with both glass and metal.