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Weatherstripping Tape Comparison Buyer's Guide

Ether Weatherstrip
Ester Weatherstrip
Vinyl Weatherseal
Rubber Sponge Weatherseal
Material Description Low cost, resilient, open cell polyether urethane foam tape. Denser, self-extinguishing open cell polyester urethane foam tape. Closed cell PVC weatherseal with excellent compression for repeat outdoor use. Closed cell neoprene rubber weatherstrip ideal for high temperature single-use sealing.
Temperature Range -40 to 150 F° * -40 to 250 F° * -40 to 180 F° -40 to 200 F° *
Compression Recovery Excellent Good Excellent Fair
Adhesive Rubber Rubber Acrylic Rubber
Flexibility Excellent Good Excellent Good
Density 1.12 PCF 2.0 PCF    
UV Resistance Poor Good Excellent Excellent
Indoor Use Excellent Excellent Excellent Excellent
Outdoor Use Poor Moderate Excellent Excellent
Flammability Rating N/A not applicable UL 94 HF-1 FMVSS 302 UL 94 HF-1
Available Colors Light Grey Dark Grey Black / Grey Black
Typical Applications Weatherstripping, Dust prevention, Acoustical absorption, Thermal insulation, Air infiltration prevention Mild UV resistance weatherstripping, Fire retardency, Dust and insect seal, Insulation, Acoustical Absorption, Hat Sizing Automotive, Marine, HVAC, RV tape, Transportation. Seals out air and moisture as well as noise dampening. Outdoor applications, Moisture seal, Dust and air sealing, High temperature weatherseal, Roof curbs.
Other Common Names Polyether Tape, Open Cell Tape Polyester Tape, Hat Resizing Tape, Open Cell Foam Tape Vinyl foam tape, vinyl weatherstrip, vinyl weatherseal, RV tape, Automotive tape, PVC tape Rubber tape, foam rubber, rubber weatherseal, sponge rubber foam
Additional Notes Ether tape is shipped in compressed rolls and should be opened or "popped" upon receipt. Tape will reach desired thickness within 24 hours. Ester tape is also used for hat resizing. Self extinguising weatherstripping option.
PVC contains acoustical and sound deadening properties. Not affected by temperature changes. Remains flexible. Neoprene sponge tape is flame retardant, chemical and oil resistant. Made of elastomeric rubber.


* Pressure sensitive rubber adhesive is good up to 150 F°


Weatherstripping can seal leaks around movable joints, such as windows or doors. You need to choose a type of weatherstripping that will withstand the friction, weather, temperature changes, and wear and tear associated with its location. For example, when applied to a door bottom or threshold, weatherstripping could drag on carpet or erode as a result of foot traffic. Weatherstripping in a window sash must accommodate the sliding of panes—up and down, sideways or out. The weatherstripping you choose should seal well when the door or window is closed while allowing it to open freely.

Choose a product for each specific location. Felt and open-cell foams tend to be inexpensive, susceptible to weather, visible, and inefficient at blocking airflow…However, the ease of applying these materials may make them valuable in low-traffic areas. PVC foam, slightly more expensive, holds up well and resists moisture. Closed-cell neoprene sponge rubber will last for years, resist rotting and mildew and is still quite affordable.
You can use more than one type of weatherstripping to seal an irregularly shaped space. Take durability into account when comparing costs. To determine how much weatherstripping you will need, add the perimeters of all windows and doors to be weather stripped. Then add 5 to 10 percent to accommodate any waste. Also take into consideration that weatherstripping comes in varying depths and widths.