Rubber Pipe Insulation Split with DoubleSeal (1/2" Thick)

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(3 reviews) Write a Review
Price: $7.14
Unit Of Measure:
Per 6ft Long Section

K-FLEX INSUL-LOCK DS (DoubleSeal) is a flexible closed-cell elastomeric insulation tube product used to conserve energy and prevent condensation on piping applications. It is pre-slit with a factory-applied pressure sensitive modified-acrylic adhesive with scrim reinforcement on the seam surface and a flexible PVC overlap tape with acrylic adhesive for doubled seam security. The system reduces installation time and costs, and ensures a strong, durable seal.

This pipe wrap insulation's closed-cell structure creates exceptional thermal properties (k-value of 0.245 at 75°F and wvt of 0.03 perm-in) that protect against moisture penetration in applications within a -40°F to +220°F temperature range.

  • K-FLEX INSUL-LOCK DS Split Foam Pipe Insulation is widely used for its cold weather flexibility, durable skin surface, exacting manufacturing tolerances and lasting performance.
  • K-FLEX INSUL-LOCK DS is non-porous, non-fibrous and resists mold, fungal and bacterial growth. For added protection, it is protected with an EPA-approved antimicrobial agent.
  • K-FLEX INSUL-LOCK DS is GREENGUARD certified under the Children and Schools classification, is approved through supervision by the Factory Mutual Research Corporation, and is 25/50-rated when tested to ASTM E 84 standards.

*Sold in 6 foot lengths (Note: we bend the 6 ft lengths to fit inside our 3ft long boxes)

K-Flex 320 Rubber Adhesive can be used to adhere sections together, while K-Flex Rubber Tape is used for valves and other hard to insulate areas.  PVC Cut & Curl Jacketing and Aluminum Jacketing can also be used over the rubber pipe insulation for weather and UV protection.

*Wall thickness = 1/2" thick

*Sizing is for Copper Piping, each photo shows the Copper ID (Inner Diameter) and Copper OD (Outer Diameter) that the pipe insulation fits.

*If you have any questions on sizing please feel free to chat, email, or call us to double check before ordering this split foam pipe wrap insulation.


Unit Of Measure:
Per 6ft Long Section
  • 5
    Looks great

    Posted by Joe on 13th Aug 2018

    Easy to install, seems very secure with the overlap flap, and looks neat and clean after installation. My application was some slightly curved copper pipes, and this had no problem following the curves (probably 30-45 degree bends). I bought the 7/8" version (normally for 3/4" ID copper pipe) to fit over 1/2" ID copper + a heating cable along its length and it fits very well.

    In my case, there were no creases after unfolding from the shipping box like the other review mentioned - the installed tube looks perfectly cylindrical.

  • 5
    Extremely easy to use!

    Posted by Timothy T. on 3rd Nov 2017

    Couldn’t be anymore easy to apply to water lines! Simply had to slide around the pipe and seal it. Looks a lot more clean and nicer then the foam pipe insulation that most people use in my opinion.

  • 3
    Product is ok

    Posted by Doug on 4th Nov 2016

    The insulation is fine the packing is some what damaging folding this product causes creases not good for the r value.

    **Doug, shipping in a 6ft long box would be extremely expensive so we bend them in half to fit in a 3ft box. The insulation and r-value should not be affected by the bend once installed on the pipe. ~BIP

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