NetComposites
Advanced Engineering 2018

Dilutec Takes on the Distribution of Büfa Equipment

20 November 2012

Dilutec took on the exclusive distribution in Brazil of equipment from the traditional German company Büfa.

Manufacturer of thinner, gelcoat and distributor of raw materials to the composites industry, Dilutec will provide gelcoat and spray-up equipment and compact service stations – machines that automatically perform the dosage of peroxide in the resin.

“We will provide the composite moulders with equipment recognised worldwide for their outstanding performance and reliability,” says Evair Tozzi, Director of Dilutec. In the first year, Tozzi estimates that Dilutec will manage to negotiate at least 40 units. ”In the Brazilian market, there is a growing demand for modern, compact and low maintenance machines, the main characteristics of the equipment produced by Büfa.”  

One example is the gelcoat unit ES1, easy to operate and ideal for the application of gelcoat in small and medium components, from 1 to 3 m². With a volume of 27 ml per cycle, the ES1 can be used in repairing damaged areas of pools and vessels. As for larger parts, moulders can rely on the GSU 6-C model, which volume per cycle is 100 ml. Both gelcoat units are supplied with the airless-type and notably robust Century projection gun.

With respect to the spray-up equipment, special mention to UNI 125, whose construction project is quite similar to the gelcoat units, that is, the ease operation prevails. Manufactured by Büfa 35 years ago, it is one of the best-selling spray-up machines worldwide.

One of the main obstacles in the manual lamination of composite materials is the variation of the dosage of peroxide in the resin. By relying on the action of a person, the percentage is not always the same, causing various types of problems, such as unsatisfactory curing and yellowing of the parts. 

The solution, found by Bufa, is called Polybar. This is a compact machine that doses through pneumatic pumps the exact amounts of resin and peroxide desired. ”After defining the relationship between the raw materials, only the supervisor of the productive area can modify it, since the device is locked. This makes the laminating process much more efficient and secure,” explains Tozzi.






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