RTV-1 Silicone Rubber

RTV-1 silicone is a condensed silicone rubber that is gradually cured from outside to inside by contacting with moisture in the air. RTV-1 silicone rubber are used in bonding, sealing, encapsulating photovoltaic module components including photovoltaic frame, junction box and micro-inverter, power industry including circuit boards, electronic components, light emitting diode industry including lamp beads, lamp cap and light bar, home appliance including air conditioner, fridge, washing machine, and microwave oven, induction cooker, new energy vehicle including electronic component. GOLOHO RTV-1 silicone rubbers are designed to provide long-term bonding, sealing, encapsulating and protection against moisture, environmental degradation, mechanical and thermal shock, heat dissipation and vibration where a room-temperature-curing product is preferred.

When using RTV-1 silicone rubber, all surfaces must be clean and dry. Degrease and wash off any contaminants that could impair adhesion. Suitable solvents include isopropyl , acetone, or methyl ethyl ketone. Apply a bead of RTV-1 silicone rubber to one of the prepared surfaces, then quickly cover with the other substrate to be bonded. On exposure to moisture, the freshly applied material will “skin over” in about 10 to 15 minutes at room temperature and 50% relative humidity. Any tooling should be completed before this skin forms. The surface is easily tooled with spatula. GOLOHO RTV-1 silicone rubbers will be tack free in about 5 to 60 minutes. After skin formation, cure continues inward from the surface. In 24 hours (at room temperature and 50% relative humidity), GOLOHO RTV-1 silicone rubbers will cure to a depth of 2 to 3 mm. Very deep sections, especially when access to atmospheric moisture is restricted, will take longer to cure completely. Cure time is also extended at lower humidity levels. Before handing and packaging bonded components, users are advised to wait a sufficiently long time to ensure that the integrity of the adhesive seal is not affected. This will depend on many factors and should be determined by user for each specific application.

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