CMT Materials, Inc.

Innovative Tooling Materials for Thermoforming

Product Data Sheets

HYTAC Plug Assist Materials

HYTAC Selector Guide

HYVAC Vacuum Fixturing

Tooling and Modeling Board

METAPOR Air Permeable Composites

Machining Tools

HYTAC Inserts

HYTAC Sizing Chart

Creation of vacuum fixtures for CNC trimming of formed parts is quick and economical with the new HYVAC material from CMT.   The material is also used to create simple go/no-go test fixtures when checking formed parts for size/fit requirements.

HYVAC is provided as a simple three-part kit consisting of resin, catalyst and fiber reinforced spheres.  Resin and catalyst are combined and poured into a supplied mixing bag along with the spheres.  Shake to coat the spheres with the adhesive, then pour the contents into a formed part.   Anchor blocks to attach the fixture when cured are pushed directly in to the mixture.    The system may be operated from a basic shop vacuum system or connected directly to a high volume vacuum line on automated trimming machines.  (CMT recommends a minimum 2.0” diameter vacuum line with unrestricted flow for optimal performance.)

Sections that require large cutouts from interior portions of the part may be blocked off with a thin layer of urethane or other non-porous filler adhesive.

Following a room temperature or oven cure, the HYVAC system provides a stiff and highly effective custom fixture that may be installed on an automated router table or manual cutting system.

Key Benefits include:

• Low cost
• Easily formed without machining
• Light weight
• Easily stored kit form allows for creation of custom shaped fixturing at a moment's notice.

HYVAC is supplied in a 0.5 cubic foot kit, conveniently separated into two distinct 0.25 cubic foot mixtures.   (0.5 cubic feet is approximately 3.8 gallons.)

Click here for a downloadable PDF: HYVAC Data Sheet