Fosroc Auramix 350 — Upper Mid PC Polycarboxylate Superplasticizer | Fosroc India (250 kg)

There's a gap in concrete mix design that sits between a mid-range superplasticizer and a full high-PC system — and it's where some of the most demanding structural concrete work actually lives. High-grade pours, heavily reinforced sections, self-compacting concrete applications, and large infrastructure elements that need maximum workability combined with very low water-cement ratios don't always need the full concentration of a high PC admixture, but they've clearly outgrown what Auramix 300 delivers. Fosroc Auramix 350 is the answer to that gap — the upper grade in Fosroc's mid PC Auramix range, calibrated for exactly those applications where the performance demand pushes towards the ceiling of what mid polycarboxylate chemistry can do.

At 350, the PC concentration is higher within the mid PC band — which translates to greater water reduction capability, improved slump retention over extended placement times, and better flow characteristics for concrete that needs to travel further into complex formwork or around dense reinforcement without segregating. It's the grade that ready-mix producers pull out for M45 and M50 concrete, that infrastructure contractors specify for bridge decks and heavily loaded structural elements, and that precast manufacturers reach for when the mould geometry or reinforcement density makes workability a genuine challenge rather than a routine consideration.

Concrete segregation and concrete bleeding stay controlled even at the higher workability the 350 grade achieves — because polycarboxylate chemistry at this level disperses cement particles effectively enough that the mix gains flow without losing cohesion. The result is concrete that moves into position easily, compacts thoroughly, and develops the strength the structural design demands without the water content compromises that achieving similar workability through water addition would require.

Part of Fosroc's Auramix polycarboxylate admixture family — backed by Fosroc's globally trusted construction chemical expertise — Auramix 350 is the high-end mid PC choice for contractors and mix designers who need more than standard mid-range performance but want to stay within the Auramix product family they already know.