IVS4742 LED encapsulant
Momentive Performance Materials has developed IVS4742, a self bonding LED encapsulant material with a viscosity and clarity that enables low pressure direct on-board lens moulding.
Direct on-board lens moulding is a major step forward in process simplification, since it combines the potting, lens moulding and mounting steps into 1 process.
IVS4742 is an excellent candidate to consider for use in the direct on-board moulding process since its low viscosity allows low pressure which helps minimize risk for LED damage. Its cure speed typically enables IVS4742 to be demoulded after 2 minutes at 150°C, however further post-cure is required to assure completion of cure and adhesion to substrates. Naturally the mould itself needs to feature ease of demould properties (e.g. a Teflon layer).
Permatex Threadlocker Gel
Permatex Threadlocker Gels are truly innovative products. The unique patented GEL TWIST applicator leaves the threadlocker precisely where you want it with no drips or solid stick globs. The easy-to-use dispenser reduces waste and therefore costs. The gel provides the same application reliability as liquid threadlockers; securing fasteners against loosening from vibrations and protecting threads from corrosion.
The threadlocker comes in two strengths
Medium strength BLUE gel - for all-purpose nut and bolt applications 6mm to 25mm.
High strength RED gel - for heavy-duty nut and bolt applications 10mm to 25mm and longer.
Both come in handy 10g dipensers which are portable and convenient; toolbox and pocket friendly.
TC-878 from BJB Enterprises is a 78 Shore D urethane, is virtually colourless and has a heat deflection temperature of 88°C with exceptional impact resistance. This material is often used in automotive design and various parts in the amusement park industry; anywhere a clear, easily pigmentable urethane is needed or a precise colour match is required. This product exhibits good weatherability and is lower in cost than comparable systems in the industry.
If higher durometer/higher heat deflection is required, check out its sister product TC-857, an 84 Shore D system with a 102°C HDT.
TC-802 is a rigid urethane casting material which offers a 1 ½ minute work time with a 10 minute demould allowing for quick turn around. The extremely low viscosity enables moulds to be filled with ease; even thin-walled parts. In most cases, vacuum de-gassing is not required. All industries from model makers, special effects and props, prototypers, to hobbyists will find the convenient 1:1 mix ratio easy to process. Cast parts do not exhibit any oily residue and can be easily painted.