Firestop Cross-Reference Guide
Switching from Hilti, 3M, or STI? Find the Metacaulk® (RectorSeal) equivalent for any firestop product — same UL performance, distributor pricing, same-day shipping. 22 categories, including 3 Metacaulk exclusives competitors don’t offer.
Switching from one brand? Dedicated guides: Hilti equivalents · 3M equivalents · STI equivalents
| Product Type | Metacaulk® — Our Equivalent | Hilti | 3M | STI |
|---|---|---|---|---|
| Intumescent Caulk | Metacaulk 1000General-purpose intumescent, UL up to 4hr, STC 62 | FS-One Max | CP 25 WB+ | SpecSeal Series – SSS |
| Multi-Purpose Caulk | Metacaulk 150+All-purpose, STC 65, Buy America compliant | CP-606 FS One & FS One Max | IC15 WB+ FireDam 150+ | LC, LCI, WF300 SpecSeal ES |
| Elastomeric | MC 1200Ultra-flexible, CG/SL/Spray, red/white/gray | CP 606 | FireDam 150+ | LC & SpecSeal ES |
| Silicone Caulk | Metacaulk 835+Silicone-based, Class 25 movement, ASTM C920 | CFS-S GG | WT 1000 NS / FB 2000+ / 3000 WT | SIL 300 |
| Silicone Self-Leveling | Metacaulk 835+ SLSelf-leveling silicone for floor penetrations | CFS-S SL | FB 1003 SL | SIL300 SL |
| Water-Based Self-LevelingEXCLUSIVE | Metacaulk 1200 SLWater-based self-leveling for floor joints | — | — | — |
| Foam Firestop | RS136 SmokeBlockEconomical foam firestop | CP 620 | FB Rated Foam FIP | SmokeBlock 200 |
| Foam / Draft / FireBlock | Draft Block OrangeOrange foam for draft stopping | CF-AS-CJP | FireBlock Foam FB | SmokeBlock 200 |
| Silicone Spray | Metacaulk 835+ SprayFast-cure spray silicone | CFS-SP SIL | FB WT Spray | Fast Tack |
| Spray Mastic | Metacaulk 1200 SprayElastomeric spray mastic | CFS-SP WB | Firedam 200 Spray / 3M Tape | AS200 Elastomeric Spray |
| Putty Sticks | MC FRS Putty StickMoldable intumescent putty | CP618 & CFS-D | MPS-2+ | SSP Putty |
| Putty Pads | MC FRP Putty PadsSelf-adhesive pads for electrical boxes | CFS-P | MPP-4S+ | SSP Putty Pads |
| Pipe Collars | Intumescent CollarsSteel collars, 1.5-6 inches | CP 643N | Fire Collar | SpecSeal Collar |
| Cast-In Devices | CIDFactory-assembled, cast into concrete | CP 653 | — | EZ Path |
| Firestop Pillows | Firestop PillowsRe-enterable, 2 and 3 inch | CFS-BL | Fire Barrier Pillow | SpecSeal Pillow |
| Joint Strip | Joint StripIntumescent strip, 1-4 inch widths, 82ft rolls | CFS-S | Fire Barrier Strip | SpecSeal Strip |
| Wrap Strip | Wrap StripIntumescent wrap for plastic pipes | CP 648-E | Fire Barrier Wrap | SpecSeal Wrap |
| Cover GuardsEXCLUSIVE | Cover GuardBehind-the-plate outlet guards | — | — | — |
| Box GuardsEXCLUSIVE | Box GuardFriction-fit electrical box inserts | — | — | — |
| Composite Sheet | Composite Sheet36x36 inch firestop board, up to 3hr | CP 637 | CS-195+ | SpecSeal Board |
| Fire-Rated Mortar | FRM Mortar45lb bag, just add water, up to 3hr | CP 636 | Fire Barrier Mortar | SpecSeal Mortar |
| Cable Coating | C70 Cable CoatingIndustrial spray/brush, gray and white | — | Cable Coating | Cable Coating |
Note: Cross-reference is for general guidance — always verify the specific UL system for your assembly. Need a system-specific recommendation? Call (732) 757-4552 or email sales@firestop-usa.com.
Firestop equivalents — frequently asked
What is the Metacaulk equivalent to FS-One Max, CP 25 WB+, SpecSeal Series – SSS?
Metacaulk 1000 — General-purpose intumescent, UL up to 4hr, STC 62. MC 1000 offers the best balance of price and performance for general intumescent needs.
What is the Metacaulk equivalent to CP-606, FS One & FS One Max, IC15 WB+, FireDam 150+?
Metacaulk 150+ — All-purpose, STC 65, Buy America compliant. MC 150+ covers the most UL systems of any single sealant. Best value for general contractors.
What is the Metacaulk equivalent to CP 606, FireDam 150+, LC & SpecSeal ES?
MC 1200 — Ultra-flexible, CG/SL/Spray, red/white/gray. MC 1200 uniquely offers caulk grade, self-leveling, AND spray formulations.
What is the Metacaulk equivalent to CFS-S GG, WT 1000 NS / FB 2000+ / 3000 WT, SIL 300?
Metacaulk 835+ — Silicone-based, Class 25 movement, ASTM C920. 835+ offers true silicone performance with Class 25 movement capability.
What is the Metacaulk equivalent to CFS-S SL, FB 1003 SL, SIL300 SL?
Metacaulk 835+ SL — Self-leveling silicone for floor penetrations. Self-leveling silicone for horizontal joints. Apply and walk away.
What is the Metacaulk equivalent to CP 620, FB Rated Foam FIP, SmokeBlock 200?
RS136 SmokeBlock — Economical foam firestop. RS136 is the budget-friendly option for basic through-penetrations.
What is the Metacaulk equivalent to CF-AS-CJP, FireBlock Foam FB, SmokeBlock 200?
Draft Block Orange — Orange foam for draft stopping. Draft Block Orange targets residential/light commercial draft stopping.
What is the Metacaulk equivalent to CFS-SP SIL, FB WT Spray, Fast Tack?
Metacaulk 835+ Spray — Fast-cure spray silicone. 835+ Spray offers fast-cure spray application for large area coverage.
What is the Metacaulk equivalent to CFS-SP WB, Firedam 200 Spray / 3M Tape, AS200 Elastomeric Spray?
Metacaulk 1200 Spray — Elastomeric spray mastic. MC 1200 Spray covers large areas fast. Available in red and white.
What is the Metacaulk equivalent to CP618 & CFS-D, MPS-2+, SSP Putty?
MC FRS Putty Stick — Moldable intumescent putty. FRS Putty Sticks are moldable — perfect for irregular openings.
What is the Metacaulk equivalent to CFS-P, MPP-4S+, SSP Putty Pads?
MC FRP Putty Pads — Self-adhesive pads for electrical boxes. Fastest way to firestop electrical boxes. Available in 6x7, 7x7, 9x9.
What is the Metacaulk equivalent to CP 643N, Fire Collar, SpecSeal Collar?
Intumescent Collars — Steel collars, 1.5-6 inches. Available in 5 sizes for PVC, CPVC, ABS, PP, PE pipes.
What is the Metacaulk equivalent to CP 653, EZ Path?
CID — Factory-assembled, cast into concrete. CIDs save significant field labor — cast them in and the firestop is done.
What is the Metacaulk equivalent to CFS-BL, Fire Barrier Pillow, SpecSeal Pillow?
Firestop Pillows — Re-enterable, 2 and 3 inch. Re-enterable — pull out, add cables, put back. No re-caulking.
What is the Metacaulk equivalent to CFS-S, Fire Barrier Strip, SpecSeal Strip?
Joint Strip — Intumescent strip, 1-4 inch widths, 82ft rolls. 82-foot rolls for head-of-wall and perimeter joints.
What is the Metacaulk equivalent to CP 648-E, Fire Barrier Wrap, SpecSeal Wrap?
Wrap Strip — Intumescent wrap for plastic pipes. Wrap around plastic pipes before sealing. Expands in fire to seal.
What is the Metacaulk equivalent to CP 637, CS-195+, SpecSeal Board?
Composite Sheet — 36x36 inch firestop board, up to 3hr. Cut with standard tools. Use with sealants for large openings.
What is the Metacaulk equivalent to CP 636, Fire Barrier Mortar, SpecSeal Mortar?
FRM Mortar — 45lb bag, just add water, up to 3hr. Go-to for large floor openings. 1 bag = 1 cubic foot.
What is the Metacaulk equivalent to Cable Coating, Cable Coating?
C70 Cable Coating — Industrial spray/brush, gray and white. Designed for industrial cable tray protection. Spray or brush.
Is Metacaulk a good alternative to Hilti, 3M, and STI firestop?
Yes. Metacaulk (manufactured by RectorSeal) offers UL-tested equivalents across virtually every firestop category — sealants, sprays, collars, wraps, putty, pillows, devices and mortar — typically at lower cost than Hilti, 3M or STI. Firestop-USA is an authorized Metacaulk master distributor.
Are Metacaulk firestop products UL Classified?
Yes. Metacaulk firestop systems are UL Classified and tested to ASTM E814 (UL 1479) and ASTM E1966 (UL 2079) for fire ratings up to 4 hours. Always verify the specific UL system for your assembly.
Do you offer distributor pricing on Metacaulk firestop?
Yes — Firestop-USA sells Metacaulk at distributor pricing with volume discounts, same-day shipping before 11 AM, and free freight on orders over $2,500. Call (732) 757-4552 or request a quote online.
Where does Firestop-USA ship?
Firestop-USA ships nationwide from New Jersey, with same-day shipping on in-stock items ordered before 11 AM.
Ready to switch to Metacaulk?
Distributor pricing, same-day shipping before 11 AM, and free freight over $2,500 — from an authorized Metacaulk master distributor in New Jersey.