Low toxicity 5-minute adhesives for live tissues! • Specially formulated for WPI • Extremely low toxicity • Excellent moisture resistance • Cures at room temperature Kwik-Sil and Kwik-Cast silicones are based on technology with vinyl terminated siloxane and platinum complex catalysts. In order to gain enough speed to cure at room temperature, special cross linkers and high catalyst concentration is used. Although the high concentration of catalysts makes these products more costly than traditional RTV silicones and less attractive for general usage, they provide an excellent value in applications for the biological research field. Both Kwik-Sil and Kwik-Cast have very low toxicity before, during and after curing. In traditional RTV silicone systems, a by-product of the condensation (curing) is either acetic acid or alcohol, which are toxic to living cells. In vinyl systems, the by-product of condensation is a small amount of hydrogen gas, which is much less toxic to the cell. Kwik-Sil and Kwik-Cast curing speed is hundreds of times faster than traditional RTV silicones. A curing time of a few minutes at room temperature is especially useful for encapsulation of live tissue or implanting into a live animal. Unlike many vinyl-based silicones in which the platinum complex catalysts are easily poisoned by contamination from amines and animal tissue, Kwik-Sil and Kwik-Cast are not sensitive to contamination from animal tissue. fluid can travel and thus short the nerve/electrode contact. Equally important is the ability of the material to flow into itself and create one continuous mass from underneath the nerve all the way to the top of the nerve/electrode contact to ensure long-term recording stability. Kwik-Cast is color-coded to make the mixing foolproof. The catalyst is yellow and the base is blue. When uniformly mixed, it is green. Kwik-Cast can be applied and cured underneath mineral oil. After recording, electrodes are easily recovered due to the low tear strength. Kwik-Cast™ is a very low viscosity silicone sealant developed to embed peripheral nerves with electrodes for acute multifiber recordings. It flows easily, filling the small spaces around the nerve and leaving no channels through which peritoneal 10 mixing tips included LAB SUPPLIES KWIK-CAST & KWIK-SIL SPECIFICATIONS Mix Ratio Working time Setting time (room temp., 1:1 ratio) Cure time Viscosity, cps Shelf life at 23 °C Volume Number of mixing tip Dead volume of the mixing tip AFTER CURING 24 HOURS: Tear Strength, ppi Elongation % Durometer (shore A-2) Color Volume Resistivity, W/cm Kwik-Sil 1 to 1 < 5 minutes* 5-10 minutes** ~15minutes 15,000 1 year 5 mL 10 <0.12 mL 90 650 30 translucent 1x1015 Kwik-Cast 1 to 1 4 minutes <10 minutes 10,000 1 year 5 mL 10 <0.12 mL 44 60 36 green 1x1015 10 mixing tips included * 3 minutes average with about 90 seconds of liquidity ** no longer mixable at this point Kwik-Sil™ is a translucent, medium-viscosity silicone adhesive, developed for chronic peripheral nerve studies such as anterograde tracing with fluorescent indicators or electrode recording. Good adhesion and mechanical properties (tear strength and elongation) allow days of study without breaking of the bonding. Curing speed is very reproducible. KWIK-SIL KWIK-CAST 600009 600022 Silicone Adhesive Compound (two 5-mL syringes) Silicone Casting Compound (two 5-mL syringes) Replacement KWIK-CAST Mixing Tips (pkg of 10) Replacement KWIK-SIL Mixing Tips (pkg of 10) PRICE BREAK 6-9 pkg KWIK-CAST KWIK-SIL 1-5 pkg 10 or More UK: Tel: +44 (0)1462 424700 • wpiuk@wpi-europe.com World Precision Instruments www.wpiinc.com Germany: Tel: +49 (0)30-6188845 • wpide@wpi-europe.com US: Tel: 941-371-1003 • sales@wpiinc.com 95