Please wait !     Updating price & availability

Welcome - FREE Shipping & FREE Returns


Industrial & Scientific > Occupational Health & Safety Products
NSI FS-136 Fireblock136 Residential Rated Non-Combustible Fire Block, 10.3 oz Caulk Tube, for Residential Applications, Red
Item Sku: FXHO008UD649N     Features & Description SKUB008HQ649A
  •   March 2026 - Shopping Deals  
  • Price: $14.80 USD
  • ✓ Free shipping
  • ✓ Free Returns - 30 days
  • ✓ Free Order Cancellation
  • ✓ 2-3 Days Delivery
  • ✓ Get It March 12, 2026
  • ✓ In Stock (13)
  • ✓ PayPal / Card Buyer Protection
  • ✓ Fulfilment by Fedex / Amazon / UPS / Shipwire
  • ✓ No marketing spam ✓ Anonymous checkout
  •          Qty:  
  •  

  • NSI FS-136 Fireblock136 Residential Rated Non-Combustible Fire Block, 10.3 oz Caulk Tube, for Residential Applications, Red Product description:

    NSi Fireblock136 fire-blocking caulk is a single component, non-combustible material for residential applications. Colored red for easy inspection, fireblock136 creates an effective barrier against flames, smoke, and toxic gasses and has superior adhesion and gunnability. Fireblock136 is for use in annular spaces around wires, pipes, ducts, vents and other penetrating items at ceiling and floor openings; and room to room in wood and steel frame constructions. It restores the integrity of fireblocks in one and two family construction. Exceeds A5TM-E136 standards for fireblocking residential requirements prescribed by all major-model building codes, and also meets or exceeds requirements of UBC, BOCA, SBC, IRC, NYS and MA codes. Meets UL 1479/ ASTM-E136 standards. 10.3-ounces caulk tube. Non-combustible for residential applications.

  •   March 2026 - Shopping Deals  
  • Price: $14.80 USD
  • ✓ Free shipping
  • ✓ Free Returns - 30 days
  • ✓ Free Order Cancellation
  • ✓ 2-3 Days Delivery
  • ✓ Get It March 12, 2026
  • ✓ In Stock (13)
  • ✓ PayPal / Card Buyer Protection
  • ✓ Fulfilment by Fedex / Amazon / UPS / Shipwire
  • ✓ No marketing spam ✓ Anonymous checkout
  • Qty:    
  •  




STORE POLICY



SUPPORT LINKS



WHO WE ARE

WebCortex : we operate as a curated online marketplace focused on delivering high-demand products with fast and reliable shipping. Our goal is to provide a seamless and trustworthy shopping experience for all our customers.

We use a dropshipping model, meaning we do not keep physical inventory. Instead, when you place an order, it is routed directly to one of our carefully selected U.S.-based suppliers, who handle the fulfillment and shipping.

We believe in being upfront about how we operate:

All products are sourced from trusted third-party suppliers in the U.S.

WebCortex is your direct point of contact for all transactions, including billing, customer service, returns, and refunds.

You will always receive support directly from us — not from our suppliers.

Our priority is customer satisfaction, and we stand behind every order placed through our store.



CONTACT US


WebCortex Philosophy: Straightforward shopping with clear product information, fast delivery, and reliable support. No marketing spam. No AI-driven product pushing. Just buy what you need and move on.

Note : We use cookies to give you a better experience on our website. By continuing to use our site, you are agreeing to the use of cookies.