UNITECHEM LS-791

Chemical Composition

Typical Properties

Product Features & Applications

High + Low MW HALS synergy — the polymeric LS-944 provides long-term thermal stability while the monomeric LS-770 delivers fast, efficient UV radical scavenging	Excellent surface protection for PP thick sections — the leading choice for automotive bumpers, fascias, and garden furniture
High stabilization efficiency in PP tapes — dual-component synergism outperforms single-component HALS at equivalent loadings	Maximum UV + heat protection — simultaneously guards against UV radiation and long-term thermal oxidative degradation
Low volatility and extraction resistance — excellent compatibility with PP, EPDM and their blends	Odourless with high colour clarity — ideal for unpigmented and light-coloured polyolefin articles

LS-791 is specifically engineered for polypropylene thick sections, PP tapes, and elastomer-modified PP blends (TPO). Primary application areas include PP, PP/EPDM, and PP/PE/EPDM blends used in demanding outdoor environments. Especially recommended for automotive exterior parts such as bumpers and fascias, as well as garden furniture, geotextiles, and woven bags requiring extended service life.

Application	Substrate	Recommended Level
Thick sections	PP, PP/EPDM, TPO	0.1 – 0.8%
Tapes	PP, HDPE	0.1 – 0.8%
Automotive exterior	PP, TPO bumpers / fascias	0.2 – 0.5%
Outdoor articles	PP / PE general outdoor	0.1 – 0.5%

Industries

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