Proxel® Spektra™ Preservative

Proxel® Spektra™ Preservative by Arxada is a dual-active, broad-spectrum biocide. Acts as an in-can preservative. It is free from formaldehyde, methylisothiazolinone (MIT) and CMIT. It exhibits low viscosity, and pH & temperature stability. Designed for wet state preservation of water-based paints. Proxel® Spektra™ Preservative offers powerful extensive protection at target dose levels that will not require EU H317 labeling.

Overview

Proxel® Spektra™ Preservative is a next-generation, broad-spectrum in-can preservative developed by LANXESS, designed to protect water-based formulations from bacterial and fungal contamination. It contains a dual active system: 1,2-Benzisothiazolin-3-one (BIT) and 2-Methyl-4-isothiazolin-3-one (MIT), offering enhanced protection, even under challenging conditions. Proxel® Spektra™ delivers rapid microbial control, extended protection, and high compatibility with modern formulation systems, making it ideal for paints, coatings, adhesives, and construction chemicals. Its low use-level and formaldehyde-free composition ensure regulatory compliance without compromising performance.

Benefits

  • Dual Active Formula – Combines BIT and MIT for broad and fast-acting protection

  • Formaldehyde-Free – Safe for eco-sensitive and low-toxicity applications

  • Extended Shelf Life – Offers long-term microbial stability

  • Low Odor – Ideal for formulations requiring low sensory impact

  • High Compatibility – Works with thickeners, surfactants, and dispersing agents

  • Effective at Low Dosage – Delivers robust protection at minimal inclusion rates

Applications

  • Water-Based Paints & Coatings – Preserves latex, emulsion, and decorative paints

  • Adhesives & Sealants – Prevents microbial growth in PVA, acrylic, and polyurethane adhesives

  • Construction Chemicals – Used in mortars, concrete admixtures, and tile grouts

  • Polymer Dispersions – Suitable for PVAc, acrylic, and styrene-acrylic systems

  • Printing Inks – Maintains stability in aqueous inks and flexographic formulations

  • Industrial Cleaners – Provides protection in water-based cleaning agents

Properties Table

PropertyDetails
Product NameProxel® Spektra™ Preservative
ManufacturerLANXESS
Chemical TypeIn-can preservative (BIT + MIT blend)
Active IngredientsBIT (≈1.0%), MIT (≈0.2%)
Physical FormLiquid
AppearanceClear to pale yellow liquid
OdorLow, mild odor
pH (as supplied)~9.5 – 10.5
SolubilityFully soluble in water
Density @ 20 °C~1.02 g/cm³
Flash Point>100 °C
Recommended Use Level0.05% – 0.15% depending on formulation type
pH Stability Range4 – 12
Shelf Life18 months (unopened original container)
Packaging Options25 kg pails, 200 kg drums, 1000 kg IBC totes

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