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AIRLESS GEL-COAT SYSTEM TM-04 Details

The TM-04 is a compact piece of equipment, and can be easily moved to places of difficult access.

The TM-04 applies gel and catalyst (MEKP) simultaneously. It delivers high productivity and agile operation. It is highly efficient and considerably economical, since it drastically reduces the emission of particles onto the environment (therefore reducing waste).

It standardizes the dispensing in time, and yields superior quality parts. The TM-04 is an external-mix gel coating dispensing system, which means gel and MEKP are mixed outside of the spray gun, therefore eliminating the risk of clogging and also the use of solvent for cleaning. The only requirement to be observed is to detach the tips after the equipment is used and immerse them into the appropriate solvent (acetone).


CHARACTERISTICS

Propelling pump, activated by a pneumatic cylinder of high potency, provides a steady flow through a pressure manifold.

The high precision, stainless steel slave pump feeds MEKP on a scale that ranges from 0.5% to 4.5%.

1-liter, polythene reservoir for MEKP.

Duralumin spray gun. Light and robust, its valves, tips and needles are made of stainless steel. Its seals and rings are made of silicon, polythene and PTFE.

Exclusive mixing system: totally independent channels for MEKP and gel-coat. The mixing of the materials is external, therefore avoiding risks of clogging.

Manifold composed of filter, pressure-regulating valves, manometers and cleaning tips.

Hose kit 7.5m (25 ft) long.

Transporting cart.


ADDITIONAL DATA
  • Output: 0.6 kg/min.
  • Working pressure: 70 lb/in² = 4.92 kg/cm².
  • Air Consumption: 8 CFM (cubic feet per minute).

See below a comparative chart on material waste of the TM-04 and other systems:

This reduction is the result of an innovative nucleation system that forms an air cone (contention barrier) around gel-coat and MEKP, preventing these materials from being lost by over spray (smaller, green arrows), which usually happens in the spray-up process. See the illustration below:

The impact of raw material against the mold is medium and the return of the material (red arrows) is hindered by the contention barrier, which repels them back onto the mould (bigger, green arrows).

The gel-coat is tightly pressed as it is sprayed out of the tip, which is built of an alloy of steel and tungsten of high durability and high resistance to abrasion. This tip determines, according to the needs of the customer, the output and fan width of the material (which can be horizontal or vertical and whose uniformity is controlled by the gel pump), diminishing production time.

The way the tips are built eliminate completely the contact of the material with the air, reducing considerably the problems of contamination through water, oil etc., which might come from the air line or other sources.

The 13:1 ratio gel-coat pump, equipped with a compensation manifold, eliminates the possibility of oscillation of the fan width.

The slave arm of the catalyst pump provides steady and precise movements, whose scales adjust from 0.5% to 4.5% in volume, therefore forming a rich and uniform catalysis. Also, the airless system provides an economy of MEKP of approximately 50% in comparison to a conventional spray-up type of equipment.

The TM04 increases productivity by 50% if compared to a conventional spray-up machine.

In a nutshell, through empirical results obtained over the past several years, we can assert that an airless gel-coat system is at least 20% more economical than its spray-up counterpart. It also provides superior quality parts, as well as uniformity in the application.