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TCSS MX-98
Thermal Polymer Preform Process

Overview

A one-step process, using low cost raw materials to create near net shape fiberglass preforms.

These preforms are used to manufacture structural composites in various molding processes, including RTM, VARTM, and S-RIM.

In the process* a powder binder is blown through a thermal spray gun. The melted powder is combined with a stream of chopped glass and sprayed toward a typical directed fiber screen.

The binder immediately resolidifies upon contact with the screen, thus eliminating a separate heating operation.

* Patent pending Dow Chemical Co.

Significant Advantages

	Uses low cost raw materials - Continuous strand fiberglass and powdered resin binder.
	20% Less waste than preformable mat preform process.
	Energy and Capital Savings from elimination of the preform drying operation.
	Very clean and adaptable to robotic operation.
	Incorporating bi-axial or unidirectional fabric is easily accomplished.
	Typical waste rates are 3-5%

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Equipment

Gun assembly integrates
torch, composite feeder,
fiber feed, and chopper.

Control console includes
all electronic, pneumatic,
and safety controls.

	Fully Computerized.
	One-Step Molding Process.
	Easy to read controls enable the operator to manipulate faster and with greater precision.

Preform Process

One-Step process starts with form mounted on backboard.

Detailed indentations are coated first,
followed by larger flat regions.

Counterbalanced gun assembly allows
effortless freedom of movement.

Finished piece is easily removed from form.
Composite mold is rigid and light-weight.

Finished in less than 2-minutes!

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© Thermal Composite Spray Systems, LC, 1998-2003 -- ALL RIGHTS RESERVED.
Feel free to e-mail us with questions.
Created: 03/20/01 Updated: 12/16/02