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DOWSIL™ XTI-1003 RTV Silicone Rubber Insulation

A two part silicone rubber designed as a flexible, insulation for use on subsea energy production equipment. This material cures at room temperature through an addition-reaction cure in unlimited thickness, regardless of part configuration or degree of confinement. It maintains excellent stability even in extreme conditions.


  • Thermal stability across a wide temperature range 
  • Good insulating properties for longer cool down times
  • Excellent flexibility and resistance to cracking
  • Easier processing for simple and complex structures
  • Joint integrity with strong silicone-to-silicone bonding
  • Fast addition-reaction cure at ambient temperatures in unlimited thickness; can be accelerated with heat
  • Available in yellow or translucent
Artwork of several pieces of equipment being used under water
White subsea pipe for XTI-1003

Subsea insulation

DOWSIL™ XTI-1003 RTV Silicone Rubber Insulation – proven solid silicone insulation for subsea flow assurance.

Protect subsea equipment with advanced, non-syntactic silicone insulation

Based on solid silicone science, DOWSIL XTI-1003 RTV Silicone Rubber Insulation is designed to help achieve a more reliable, cost-efficient and lower-risk subsea wet insulation system for HP/HT equipment used in deepwater production and tieback systems. The "pure silicone" technology has potential advantages over syntactic urethanes, epoxies and silicones to help prevent flowline blockages and provide specified no-touch times for shutdowns.

Our non-syntactic, two-part, room-temperature-curing thermal insulation solution, DOWSIL XTI-1003 RTV Silicone Rubber Insulation, offers:

  • High performance – To help operators meet specified needs for structural and thermal integrity in high-temperature/high-pressure environments.
  • Ease of application – To ensure reliable performance by helping coating specialists reduce process inconsistencies and optimize quality control.

Photo and application courtesy of Treilebourg Offshore UK Ltd. © 2012

Differentiating performance summary


Silicone Rubber Insulation

High temperature

Very good



Application ease

Very good

Joint strength


Shelf life

Very good

EHS profile

Very good

Water absorption


Cost in use


Technology and experience from an industry expert

For every stage in the oil and gas production process, Dow has the solutions and expertise to help meet your needs. Bring us your challenges – and discover our solutions.


These values are typical properties and are not intended for use in preparing specifications.

  • Durometer - Shore A 40 Shore A
  • Elongation 325 %
  • Number of Parts Two
  • Shelf Life 540 Days
  • Tensile Strength 797.708 psi

No Safety Data Sheets are available online for this material
Please Contact Dow for additional information.

No sales specification could be found for this material in selected language

DOWSIL™ XTI-1003 RTV Silicone Rubber Insulation
No Technical Data Sheets are available for this product
Please Contact Dow for additional information.

DOWSIL™ XTI-1003 RTV Silicone Rubber Insulation

No Regulatory Data Sheets are available for this product

DOWSIL™ XTI-1003 RTV Silicone Rubber Insulation
Please Contact Dow for distribution options available for this product.