LOCTITE Super Glue GEL CONTROL Liquid Powerflex Power Flex Strong Bonding DIY. This Loctite Ultra Gel Control super glue is a specially formulated rubber toughened instant adhesive that resists impact, shock, vibration and temperature extremes. Ideal for bonds subject to daily use and harsh conditions, the rubber toughened formula is also safe to use outdoors. The side squeeze design gives greater control and air-tight storage, and the glue is resistant to moisture and freezing temperatures. It is non-drip and formulated with rubber for applications that require flexibility and shock resistance. The Powerflex gel is water resistant.