6mm ID 4:1 Semi-Rigid, Adhesive Lined Heat Shrink Tubing, Flame Retardant and UV Resistant, FMVSS 302

*Custom configurations available

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Semi-Rigid, Adhesive Lined Polyolefin Tubing

4:1 Shrink Ratio

Flame Retardant


Specially designed to protect splices and joint of wire harness, and components against environmental damage. 4:1 shrink ratio allows it to easily fit a wide range of components, and thicker adhesive coated layer forms an effective barrier against fluids and moisture.

Used in wiring harness splice sealing and is moisture proof while meeting FMVSS 302 flammability

Operating temperature: -40°C to +125°C
Minimum shrink temperature: 110°C
Minimum Full recovery temperature: 135°C
Meets: Flame Retardant and UV Resistant (Black only), 600V
Standard colors: Black and Clear
RoHS Compliant



Additional information




As Supplied ID (min)

Recovered ID (max)

Recovered Wall Thickness


Min Operating Temperature (°C)

Max Operating Temperature (°C)


Shrink Ratio


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Print Certificates

April 18, 2024

Certificate of RoHS Compliance

Qualtek Electronics certifies the following part number QBK-1-01-QB6IN-20 is RoHS Compliant 2011/65/EU Ammended to 2015/863/EU

Certificate of REACH Compliance

We, Qualtek Electronics Corporation, declare that the following part number QBK-1-01-QB6IN-20 does not contain any SVHC substances listed in ECHA’s website: http://echa.europa.eu/chem_data/authorisation_process/candidate_list_table_en.asp of January 2024 in concentrations greater than 0.1% (w/w), and does not contain any substances as described in Annex XVII.


Qualtek Electronics Corporation products do not contain any chemicals considered PoP, Persistent Organic Pollutants, Directive (EU) 2019/1021.

EU Biocides

Qualtek Electronics Corporation certifies that bicoides are not used in products or packaging materials and meet the requirements set by the Biocidal Regulation (BPR) EU 528/2012.

California Proposition 65 Information Can be found at:

Prop 65 Statement

Qualtek Electronics • 7610 Jenther Drive • Mentor, OH 44060 USA