Foams

Polyurethane foams are versatile products with a wide range of uses and applications including flexible foams for furniture, bedding and automotive interiors and rigids foams for insulation and soundproofing. They are formed by reacting polyols with isocyanates in the presence of catalysts, surfactants, and blowing agents. In regard to catalysts, two main types are used: tertiary amines and metal-based catalysts.

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Product List

Reaxis C125 – Stannous Neodecanoate Stannous Neodecanoate Request A Sample
Reaxis C129 – Stannous Octoate Stannous Octoate Request A Sample
Reaxis C214 Dioctyltin bis-(isooctyl mercaptoacetate) Request A Sample
Reaxis C216 Dioctyltin Dilaurate Request A Sample
Reaxis C218 Dibutyltin Dilaurate Request A Sample
Reaxis C220 Monobutyltin Tris-(2-ethylhexanoate) Request A Sample
Reaxis C221 Dibutyltin Dineodecanoate Request A Sample
Reaxis C227 Dibutyltin bis-(1-thioglycerol) Request A Sample
Reaxis C233 Dibutyltin Diacetate Request A Sample
Reaxis C233T Dibutyltin Diacetate Request A Sample
Reaxis C314 Dioctyltin bis-(2-ethylhexyl maleate) Request A Sample
Reaxis C316 Dimethyltin Dioleate (Dimethyl bis(oleoyloxy stannane) Request A Sample
Reaxis C317 – Dibutyltin bis-(2-ethylhexyl maleate) Dibutyltin bis-(2-ethylhexyl maleate) Request A Sample
Reaxis C318 Dioctyltin Dineodecanoate Request A Sample
Reaxis C319 Dibutyltin Dilauryl Mercaptide Request A Sample
Reaxis C320 Dioctyltin Dilauryl Mercaptide Request A Sample
Reaxis C3208 Bismuth Neodecanoate Request A Sample
Reaxis C3209 Bismuth Neodecanoate (Low Viscosity) Request A Sample
Reaxis C3210 Bismuth Octoate (Catalyst Grade) Request A Sample
Reaxis C322 Dibutyltin bis-(2-ethylhexyl mercaptoacetate) Request A Sample
Reaxis C325 Dimethyltin Dineodecanoate Request A Sample
Reaxis C416 Dioctyltin bis-(2-ethylhexyl mercaptoacetate) Request A Sample
Reaxis C418 Dibutyltin bis-(isooctyl mercaptoacetate) Request A Sample
Reaxis C616 Zinc Neodecanoate Request A Sample
Reaxis C620 Zinc Octoate Request A Sample
Reaxis C708 Zinc/Bismuth Neodecanoate Blend Request A Sample
Reaxis C716 Bismuth Neodecanoate Request A Sample
Reaxis C716LV Bismuth Neodecanoate (Low Viscosity) Request A Sample
Reaxis C717 Zinc/Bismuth Octoate Blend Request A Sample
Reaxis C739E50 Proprietary Water Soluble Bismuth Complex Request A Sample
Reaxis C739P50 Proprietary Water Soluble Bismuth Complex Request A Sample
Reaxis C739W50 Water Soluble Bismuth Complex Request A Sample

Polyurethane Foam Catalysts

In regard to polyurethane foam catalysts, two main types are used: tertiary amines and metal-based catalysts. Tertiary amines are commonly referred to “blowing” catalyst as they are selective toward isocyanate/water reaction whereas metal-based catalysts are considered as “gelation” catalysts as they are preferential toward the isocyanate/polyol reaction. Reaxis supplies a wide range of tin-based, bismuth-based, and zinc-based metal catalysts.

The choice of catalysts depends on the specific foam type, raw materials used, desired final properties and, increasingly, environmental drivers. Metal-based catalysts, like tertiary amines are more selective toward specific reactions involved in polyurethane synthesis. Some common Reaxis products used in polyurethane foams include:

Inorganic Tin Polyurethane Foam Catalysts

Inorganic tin products such as REAXIS® C129 (Stannous Octoate) and REAXIS® C125 (Stannous Neodecanoate) are commonly used in the production of flexible foams. The benefits of these tin-based products include high active metal content, good ligand compatibility, long history of commercialization and no organotin content.

Organotin Carboxylate Polyurethane Foam Catalysts

Organotin carboxylate products such as REAXIS® C218 (Dibutyltin Dilaurate), REAXIS® C233 (Dibutyltin Diacetate) and REAXIS® C325 (Dimethyltin Dineodecanoate) are commonly used in both rigid and flexible foams. Primarily used to promote the isocyanate and polyol reactions, these catalysts will also partially catalyze the water and crosslinking reactions.

Organotin-Sulfur Polyurethane Foam Catalysts

Organotin-sulfur products such as REAXIS® C319 (Dibutyltin Dimercaptide), REAXIS® C322 (Dibutyltin bis-(2-ethylhexyl Mercaptoacetate)) and REAXIS® C214 (Dioctyltin bis-(isooctyl Mercaptoacetate)) are commonly used in rigid foam applications where enhanced front-end reaction delay and improved hydrolytic stability, versus organotin carboxylates, is required.

Zinc-Based and Bismuth-Based Polyurethane Foam Catalysts

The use of bismuth and zinc-based metal catalysts is increasing as regulations tighten on organotins. Common products include REAXIS® C716 (Bismuth Neodecanoate), REAXIS® C3210 (Bismuth Neodecanaote) REAXIS® C616 (Zinc Neodecanaote) and the bismuth-zinc metal blend, REAXIS® C708 (Bismuth/Zinc Neodecanoate) and REAXIS® C717, (Bismuth/Zinc Octoate). Our line of non-carboxylate-based bismuths include REAXIS® C739P50 and REAXIS® C739E50 provide for improved isocyanate/polyol selectivity and hydrolytic stability and like tin catalysts, bismuth carboxylates are more selective toward the isocyanate/polyol reaction. The selectivity towards the crosslinking reactions is unique to the zinc carboxylate-based catalysts.