High-strength, vibration-dampening, silicone adhesive to enable optical and sensor assembly

J. Zampella; A. Karges; C. Miller; D. Gascoyne

doi:10.1117/12.2672974

15 June 2023 High-strength, vibration-dampening, silicone adhesive to enable optical and sensor assembly

J. Zampella, A. Karges, C. Miller, D. Gascoyne

Proceedings Volume 12514, Image Sensing Technologies: Materials, Devices, Systems, and Applications X; 125140K (2023) https://doi.org/10.1117/12.2672974
Event: SPIE Defense + Commercial Sensing, 2023, Orlando, Florida, United States

Conference Poster

Abstract

Momentive’s SILTRUST™ RTV6561-LV and RTV6562-LV adhesives build on SILTRUST RTV566’s heritage in the optics industry. SILTRUST RTV566, a low outgassing, two-part, condensation cure silicone adhesive, maintains properties from -115°C to 260°C and typically reaches full properties after curing for seven days. SILTRUST RTV6561-LV and SILTRUST RTV6562-LV are heat-curable in contrast and are excellent candidate adhesives to consider for bonding sensory equipment. Similar to SILTRUST RTV566, they maintain properties at extreme high (260 °C) and low (-115 °C) temperatures and are ideal for bonding materials with dissimilar coefficients of thermal expansion. These products meet the low outgassing requirements set by ASTM E595 for total mass loss of less than 1% and collected volatile condensable materials of less than 0.1%. These adhesives offer high flow and low flow formats enabling process options for optics and sensor manufacturing. SILTRUST RTV6561-LV is flowable, whereas SILTRUST RTV6562-LV is a semi-flowable paste. They exhibit high tensile strengths with flexibility. A requirement for these products was to help enable rapid assembly. These grades can be cured with full properties in one hour at 80°C or in two days at room temperature with adhesive strength comparable to SILTRUST RTV566. These new silicone adhesives, SILTRUST RTV6561-LV and SILTRUST RTV6562-LV, have been formulated to provide primerless adhesion to many materials and can enable time saving and greater consistency during assembly tasks. Material shrinkage upon cure has been reduced compared to the legacy product.

Citation Download Citation

J. Zampella, A. Karges, C. Miller, and D. Gascoyne "High-strength, vibration-dampening, silicone adhesive to enable optical and sensor assembly", Proc. SPIE 12514, Image Sensing Technologies: Materials, Devices, Systems, and Applications X, 125140K (15 June 2023); https://doi.org/10.1117/12.2672974

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