ACTICIDE® PDT is a specialized dry-film preservative developed by Thor, formulated with 4,5-Dichloro-2-n-octyl-3(2H)-isothiazolone (DCOIT) in a dioctyl terephthalate carrier. This high-performance biocide offers long-term microbial protection for polymeric and plasticized systems such as PVC, synthetic coatings, and latex products. By preventing fungal and bacterial growth, ACTICIDE® PDT protects substrates from discoloration, degradation, and loss of mechanical properties. Designed for demanding conditions, it exhibits excellent thermal stability, moisture resistance, and film integrity, even under wash-off and high-humidity exposure. Its compatibility with a wide range of polymer systems makes it an ideal choice for high-value construction, coating, and plastic applications requiring durable and reliable dry-film protection.
Rapid and Persistent Efficacy: Fast-acting DCOIT ensures long-duration dry-film protection.
Broad-Spectrum Activity: Controls bacteria and fungi, preventing color change and spoilage in polymers and latex.
High Compatibility: Works well in PVC, latex, adhesive, and coating systems coated with plasticizer or lipid carriers.
Moisture Resistance: Maintains activity in dry-film even in humid or wash-prone conditions.
Low Use Level Efficiency: Effective at 0.12%–0.56% w/w depending on formulation
Regulatory Compliance: Acceptable under relevant US EPA regulations for industrial coatings and polymer preservation.
Plasticized PVC & Specialty PVC Products – Used in flooring, wall coverings, coated fabrics, hoses, gaskets, and synthetic leather for long-term dry-film preservation.
Latex-based Products – Preserves performance polymers such as vinyl floor tile, coated fabrics, and rubberized coatings.
Paints & Coatings – Effective in latex paint systems where dry-film protection is essential.
Construction Materials – Provides microbial resistance in sealants, mastics, joint cements, and admixtures.
Adhesive Systems & Tackifiers – Combats microbial contamination in adhesives, including starch-based, PVAc, SBR, and specialty pastes
| Property | Details |
|---|---|
| Product Name | ACTICIDE® PDT (DCOIT in dioctyl terephthalate) |
| Manufacturer | Thor GmbH / Thor Specialties, USA |
| Chemical Family | Isothiazolinone-based dry-film biocide |
| Active Ingredient | 4,5‑Dichloro‑2‑n‑octyl‑3(2H)‑isothiazolone (DCOIT) |
| Physical Form | Liquid suspension in dioctyl terephthalate carrier |
| Appearance | Pale yellow to amber clear liquid |
| Recommended Use Level | 0.12–0.56% by weight of formulation |
| Compatibility | PVC, latex, adhesives, tackifiers, coatings, and plasticized polymer systems |
| Film Stability | Excellent dry-film resistance; resists washout and leaching |
| Shelf Life | 24 months in sealed container |
| Applications | Dry-film-treated PVC, paints, adhesives, tackifier systems |
| Storage Conditions | Cool, dry, well-ventilated area, protect from heat or freezing |
| Packaging | Typically in 25 kg jerry cans or drums |
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