Benzoyl Peroxide (BPO) can be used as an initiator for polyester thermoset resins, as an alternative to methyl ethyl ketone peroxide (MEKP). For instance, PMMA resins and vinyl-esters can be polymerized with benzoyl peroxide. UI is a leading producer of all applied BPO-grades, such as pastes, powders and liquids.
Chemical anchors relate to steel studs, bolts and anchorages which are bonded into a substrate, using a resin based adhesive system. Ideally suited for high load applications, in virtually all cases the resulting bond is stronger than the base material itself.
Car repair / putties are materials that typically require BPO (sometimes MEKP) to harden. The filler itself is a mixture of fiberglass, (polyester) resin and talc. The resin allows adhesion and the talc makes the material flow smoothly
Polyester road-marking paints for roads and highways compositions consisting of a polyester resin and a catalyst (BPO), applied with specialized striping equipment. For enhanced visibility, reflective glass beads can be dropped into the paint.
Polymer flooring is a production method where a mix of resin with fillers are poured into a mold. Generally a mix is made of 10-25% resin and the rest are fillers such as sand or stones and pigments in order to get the right strength and aspect.
A cured-in-place pipe (CIPP) is a technology used to repair existing pipelines (water, sewer, gas and chemical pipelines) by inserting a respective in-liner. UI offers a comprehensive product range for CIPP, featuring percarbonates and peresters.
Closed mold processes offer many advantages over open molding such as: reduced waste and emissions for a cleaner, healthier environment, lower material costs, reduced cycle times. UI offers a comprehensive product range for closed mold applications, featuring numerous MEKP- and AAP-blends.
Continuous Lamination is a process whereby impregnated reinforcement fibers are guided through pressing and guiding rolls where the desired composite lay-up is formed. Curing of the Laminate is made at elevated temperature and pressure. UI is a leading producer of MIBKP (Pulcat).
Engineered stone is a composite material made of crushed stone bound together by a polyester resin. For engineered marbles the most common application is indoor floorings and kitchen countertops. UI offers a comprehensive product range for engineered stone, featuring numerous MEKP-, AAP- and TBPB-blends.
Open mold processes include spray-up and hand lay-up. This method is used to produce boats, bathtubs and other composite products. UI offers a comprehensive product-range for open mold applications, featuring numerous MEKP- and AAP-blends.
When making a polyester button a variety of chemical dyes are added to the polyester to make different colors. The button making process requires a chemical catalyst (for instance MEKP) that hardens the polyester. UI offers a comprehensive product range for the production of buttons, featuring numerous phtalate-free MEKP’s.
Gelcoat is a material used to provide a high-quality finish on the visible surface of a fiber-reinforced composite. Gelcoats are cured to form crosslinked polymers and are subsequently backed with mixtures of polyester resin and fiberglass. UI is a leading producer of high quality MEKP’s specifically suitable for gelcoats.
Hand Lay Up
Hand lay-up is a simple method whereby glass or other reinforcing mat or woven fabric or roving is positioned manually in the open mold, and resin is poured, brushed, or sprayed over and into the glass plies. UI offers a comprehensive product-range for hand lay-up applications, featuring numerous MEKP’s, AAP’s and blends.
For larger production runs the spray up method is used. In the spray up process the resin and the fiber are spayed onto the mold. Then the laminate is rolled in order to remove air. UI offers a comprehensive product-range for spray-up applications, featuring numerous MEKP’s, AAP’s and blends.
In polymer concrete typically thermosetting resins are used as the principal polymer component. Polymer concrete is also composed of aggregates that include silica, quartz, granite, limestone. UI offers a comprehensive product-range for polymer concrete, featuring numerous MEKP’s, AAP’s and blends.
Pultrusion is a continuous process where glass roving is “pulled” through a heated die creating a profile shape. Pultruded products are tubing and sheets and typically applied in the construction market. UI offers a comprehensive product range for pultrusion, featuring percarbonates and peresters.
SMC and BMC are press methods where a combination of high pressure and high temperature are applied until curing occurs. Typical applications include automotive and electrical applications. UI offers a comprehensive product range for SMC/BMC, featuring a wide variety of perketales, peresters and blends.
Pipes and Tubes
For the production of pipes and tubes two main production methods exist:
filament winding and centrifugal casting.
Centrifugal casting is a process for pipe production: the pipe wall is built up from the outside inwards in a rotating mold. Once all the materials have been fed into the mold, the speed of rotation is increased. Centrifugal forces press them against the mold wall. UI offers a comprehensive product-range for centrifugal casting, featuring numerous MEKP’s, AAP’s and blends.
Filament winding is the process of winding resin impregnated glass or advanced fiber around a rotating mandrel, to create a composite structure. The process is to produce large diameter tanks, pipes and many other products. UI offers a comprehensive product-range for filament winding, featuring numerous MEKP’s, AAP’s and blends.