Q1: Can I really store TCR™ Prepregs outside a
freezer or cold box?
our prepregs are designed to be store at ambient room temperature (75°F/21°C)
for three (3) months up to one (1) year.
Q2: Will freezing damage the prepregs?
actually freezing them or keeping them cold will help them last even
longer. Care must be taken to warm them
to ambient room temperature for 24 hours after removing them from a freezer, or
for a few hours after removing from a cold box. Store and allow them to warm up while still
sealed in their bags to minimize water condensation.
Q3: Do I need to wear gloves,
protective eyewear and respirators when working with TCR™ Prepregs?
(latex, vinyl, rubber, etc) that are impervious to
resin are recommended to reduce risk of skin irritation. Protective eyewear is not necessary for the
prepregs themselves, as resin will not leave the prepregs during part
manufacturing. Respirators and other
special equipment are not necessary under typical processing conditions. Personal Protection Equipment policies of
your facility should always be practiced.
Q4: How long are TCR Composites’ lead times?
lead times are four (4) weeks to ship date from date of order receipt for the common
prepreg products and four to six (4-6) weeks for others. Special or exotic fibers or weaves may take
longer. TCR Composites works with
suppliers worldwide, so please contact us for specific lead times.
Q5: At what tension should TCR™ Towpreg be
optimal tension is 10lbs/4.5kgs but we have found the towpreg can be
effectively un-spooled at a wide range of tensions starting at 4lbs/1.8kgs and
going as high as 20lbs/9kgs. TCR
Composites has on-site technicians available to assist with optimization of the
winding machine at your facility – contact us for assistance.
Q6: What kinds of solvents can
be used to clean rollers and contact points on winding machines?
acetone, alcohol or any environmentally safe solvent you can find.
TCR Composites have in-house testing capabilities?
we are capable of performing many mechanical tests on composite materials and
are consistently working to build our database.
Contact us with your specific inquiries.
TCR Composites assist with winding machine design and setup?
is able to assist with winding machine drawing optimization, fiber delivery
path optimization and machine setup optimization. It is best to contact us early in the
planning process however we are able to assist at any point.
Q9: Is TCR
Composites developing additional resin systems for prepregs?
has a full-time Research and Development team on-site including a Chief
Chemist, Chemist and Associate Chemist.
We are consistently working on new resin systems to meet a wide range of
properties and requirements. Contact us
to discuss our works in progress.