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The following pages have general information on heat forming
AZEK Trim and Moulding Products using a heat blanket and are
not intended as a Users Manual. You should always use the heat
blanket manufacturers User Manual instructions when using their
product.
2 x 6 Boards 8” Long
Cement Boards
One at 10” x 65”
One at 5” x 65”
heat
Preparing to Heat Form
Layout wooden blocks to support cement board (8” x
65”) and to protect work surface from heat
Place heat blankets on
Cement board
Begin preheating
Place 5” x 65” cement board between
blankets
Set Controller to High
Preheat for 15-20 Min
Preheating system
Do not allow heated portion of blankets to come in direct contact
Temperature should reach about 290 -300 degrees F
Lower heat if forming will not begin for some time
Place AZEK material (3/4”x 3.5”x 64”) between blankets with
preheated cement board on top and bottom as shown
Continue heating for 7 – 10 minutes temperature should reach about 300 F
Periodically check temperature
When product is approaching final temperature check for consistency
Consistency should be like cooked spaghetti
When proper temperature is reached place material over center of form
Gently form material around radius
If product wrinkles or feels too rigid to form straighten piece out before it cools too
much and place back in heat blankets.
If top edge wants to roll away or curl from form; a block of wood can be used to
gently hold material flat while it cools. Too much pressure will mark the AZEK
surface.
Clamp Product and allow to cool
Product can be removed once cool enough to maintain its shape
Longer pieces of AZEK can be heat formed by heating one side at a
time.
Lay blankets end to end without overlapping blankets
Begin heating product one side at a time. Flip product
periodically until board reaches proper temperature.
A piece of preheated cement board can be used to keep top face
warm during the heating process.
A tight radius may have a tendency to wrinkle slightly on the inside
edge of the formed piece. A router can be used to clean this edge
up.
Wrinkling on larger radius pieces may be an indication that the part
has not been heated enough or that it has cooled too quickly
Heat Blankets are available through your AZEK
Building Products Dealer
Or direct from Heatcon-
AZEK Trim Heat Forming Kit HC99-100
Phone: 800-566-1990
Email: wainfo@heatcon.com
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