Add to Wishlist
Part# 01-14850
MFR Model# GS2131/2


400° F RESISTANT SEALANT TAPE - #4401 is a grey vacuum bag sealant tape that removes cleanly from the tool surface at the completion of the cure cycle. It can be used at any temperature up to 400° F. It can be used on any tool surface now in use and has been a standard of the industry for many years. It has high initial tack and is very easy to apply to prevent leaks between the bag and tool. It works well for composites, metalbond, or any function that requires temperature and/or pressure up to 400° F.

Color: Grey.

Size: 1/8" x 1/2" x 25 ft roll


Sealed the Vacuum Bag 100%, no leaks.

Rene A
April 6, 2021

July 30, 2018

Incredibly sticky

Robert N
February 27, 2018

This tape is easy to use and gives an excellent seal when vacuum bagging composites.

Russell S
November 23, 2017

This stuff works awesome...I use it with prepreg that I cure at 275 for an hour under vac and it performs perfectly!

May 27, 2013


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Is this butyl?

The manufacturer calls the base material as a synthetic rubber. Butyl is a synthetic rubber product.

Q: Is there a minimum temperature that this tape is rated for? I want to use it to seal off some pipes that will be running liquid nitrogen at -360 *c

This is not recommended at temperatures that low. This may crack and not seal correctly. Per Vendor: we have no data on the minimum temperature neither does the manufacturer.

Q: What is the shipping weight, and dimensions for this item Part # 01-14850?

Shipping weight is 0.98 lbs. Diameter is 7.5 inches.

Q: What is the total shelf life for the heat resistance sealant tape?

Shelf life is 1 year from the D.O.M. when stored at 720F (220C).

View in Catalog

View Image View in Catalog