search
Ask ACHR NEWS AI
cart
facebook twitter instagram linkedin youtube
  • Sign In
  • Subscribe
  • Sign Out
  • My Account
  • NEWS
  • TECHNOLOGY
    • Heating & Boilers
    • Cooling & Chillers
    • Pumps & Flow Controls
  • SECTORS
    • Commercial
    • Health Care
    • Data Center
    • Educational Facilities
  • DESIGN | CONSTRUCTION
  • OTHER TOPICS
    • High-Performance Buildings & Automation
    • Ventilation and IAQ
    • Commissioning
    • HVAC Retrofits
  • TODAY’S BOILER
    • Today’s Boiler Archives
    • Today’s Boiler Digital Edition
  • MORE
    • Case Studies
    • Podcasts
    • Videos
    • Directory
    • Webinars
    • ES NEWS Store
    • White Papers
  • SIGN UP
  • Back to The NEWS
Engineered Systems NEWSHVAC Engineering SectorsCommercial HVAC

Draft-Block Orange Fire-Blocking Polyurethane Foam Sealant – RectorSeal

Draft-Block Orange
Image courtesy of RectorSeal
November 9, 2021

HOUSTON — RectorSeal®, a manufacturer of HVACR and plumbing tools and accessories, and a wholly-owned subsidiary of CSW Industrials Inc., has introduced Draft-Block™ Orange, a fire-blocking, expanding, polyurethane foam sealant for use by trade professionals across North America.

Draft-Block Orange is a filler that expands up to three times to fill, bond, and insulate a wide assortment of applications. As a low-pressure, one-component product, it adheres readily to wood, glass, metal, tile, concrete, and most plastics. Beyond its fire blocking benefits, Draft-Block Orange helps to reduce sound transmission.

Available in a 12-ounce aerosol can, Draft-Block Orange fills voids, cracks, crevices, and small cavities on flat and irregular surfaces. After curing, Draft-Block Orange is an odorless, noncorrosive, nonreactive inert substance.                                            

As indicated in the product name, its orange color makes it easily identifiable during use. As a polyurethane foam, Draft-Block Orange is completely dielectric and contains no urea or formaldehyde. When properly applied, Draft-Block Orange dries tack-free in approximately five minutes. It is cuttable within one hour and fully cured within 12-24 hours. When fully cured, Draft-Block Orange is resistant to water and outdoor exposure. The product adheres to UL evaluation report R40378-01 and achieves an ASTM E84 rating.

Draft-Block Orange offers outstanding performance when used in voids around plumbing and utility penetrations to stop drafts and prevent the intrusion of insects and other pests. Additional use includes sealing around windows, air conditioners, ducts, and vents and providing energy-saving features in heating and cooling installations. Draft-Block Orange can help seal voids in siding, door jams, foundations, and concrete joints. For more information, visit www.rectorseal.com. 

Share This Story

Looking for a reprint of this article?
From high-res PDFs to custom plaques, order your copy today!

 

Recommended Content

JOIN TODAY
To unlock your recommendations.

Already have an account? Sign In

  • HVAC-enrollment

    The Trades Are Back: HVACR Programs See Nearly 30% Enrollment Spike

    A new wave of future technicians is entering the pipeline.  
    News
    By: Matt Jachman
  • 2025 Top 40 Under 40

    2025 Top 40 Under 40 HVACR Professionals List

    The 11th annual Top 40 Under 40 list highlights those...
    News
    By: Hannah Belloli-Oster
  • LG Ductless Mini-Split Systems

    The 9 Types of Heat Pumps

    As the U.S. moves toward electrification, heat pumps are...
    Heat Pumps
    By: Joanna R. Turpin

More Videos

Today's Boiler

Spring 2026 Issue

Today's Boiler - Spring 2026 Cover

Read More from Today's Boiler

Case in Point Logo

Smarter Hydronic Design for Data Centers - Free Webinar - January 22, 2026

Related Articles

  • Todol Products Inc.: Polyurethane Foam Sealant

    See More
  • Wind-Lock: Foam Sealant, Insulation, Adhesive

    See More
  • sealant

    Lamatek Inc.: Foam Sealant Tape

    See More

Related Products

See More Products
  • 1819.gif

    Fire, Smoke and Radiation Damper Installation Guide for HVAC

  • The ACHR News - December 1, 2025

    ACHR NEWS December 1, 2025, Issue

  • 1987.gif

    HVAC Duct Systems Inspection Guide

See More Products

Related Directories

  • RectorSeal

    RectorSeal, LLC, a wholly owned subsidiary of CSW Industrials, Inc. [NYSE: CSW], is a leading provider of quality solutions for the professional trades serving heating, ventilation, and air conditioning (HVAC/R), plumbing, electrical, and construction markets.
×

Sign Up. Stay Informed.

The #1 trusted source for the HVACR industry since 1926

SUBSCRIBE
  • RESOURCES
    • Advertise
    • Contact Us
    • Advisory Board
    • Classifieds
    • Submit a Letter
    • Directories
    • Store
  • ACCOUNT CENTER
    • Create an Account
    • Start a Subscription
    • Manage My Account
    • Sign Up for Newsletters
    • Visit Customer Service
    • Update Preferences
  • SERVICES
    • Marketing Services
    • Reprints
    • Market Research
    • List Rental
    • Survey/Respondent Access
  • STAY CONNECTED
    • LinkedIn
    • Facebook
    • Instagram
    • YouTube
    • X (Twitter)
  • PRIVACY
    • PRIVACY POLICY
    • TERMS & CONDITIONS
    • DO NOT SELL MY PERSONAL INFORMATION
    • PRIVACY REQUEST
    • ACCESSIBILITY

Copyright ©2026. All Rights Reserved BNP Media, Inc. and BNP Media II, LLC.

Design, CMS, Hosting & Web Development :: ePublishing