ACTICIDE® PDL

ACTICIDE® PDL by Thor is a phthalate-free, biocide. It is DCOIT in polyethylene. This additive displays protection from bacterial and fungal growth and associated color changes. It is used in plasticized PVC.

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ACTICIDE® PDL is a high-performance dry-film preservative developed by Thor, specifically designed to protect decorative coatings, sealants, and construction materials from fungal and algal contamination over extended service life. It is formulated with isothiazolinone derivatives (primarily DCOIT) combined with stabilizers to ensure maximum durability under harsh outdoor conditions. ACTICIDE® PDL exhibits exceptional leach resistance, UV stability, and long-lasting antimicrobial action, making it ideal for exterior coatings exposed to high humidity, rainfall, and sunlight. By maintaining surface cleanliness, it enhances both the aesthetic appearance and structural integrity of coatings.

Benefits

  • Comprehensive Protection: Effective against fungi, algae, and bacteria.

  • Enhanced Leach Resistance: Retains active ingredients even in wet environments.

  • Excellent UV & Weather Stability: Ensures long-term performance under sunlight and temperature fluctuations.

  • Compatibility: Works with waterborne and solvent-based coatings and construction compounds.

  • Low VOC Formulation: Meets modern environmental and regulatory requirements.

  • Long-Term Durability: Extends coating life and preserves aesthetics.

Applications

  • Architectural Exterior Coatings – Protects walls and facades from mold and algae.

  • Roof Coatings & Waterproof Membranes – Ensures stability under heavy rainfall and moisture exposure.

  • Wood Protection Systems – Prevents surface mold and discoloration on wooden substrates.

  • Industrial Protective Coatings – Offers microbial resistance for marine and high-moisture environments.

  • Sealants & Joint Fillers – Provides protection against microbial attack in construction joints.

  • Textured Decorative Finishes – Maintains the cleanliness of decorative plasters and renders.

Properties Table 

PropertyDetails
Product NameACTICIDE® PDL
ManufacturerThor
Chemical TypeDry-film preservative (Isothiazolinone-based, DCOIT formulation)
Active IngredientDCOIT (4,5-Dichloro-2-n-octyl-3(2H)-isothiazolone) ~25%
Physical FormLiquid concentrate
AppearanceLight amber to pale brown liquid
pH (as supplied)6.0 – 7.5
SolubilitySlight in water; soluble in organic solvents
Density (at 20 °C)~1.10 g/cm³
Thermal StabilityExcellent under standard coating process conditions
Flash Point>100 °C
Shelf Life24 months in sealed original packaging
Recommended Dosage0.3 – 1.0% (depending on exposure and formulation type)
Storage ConditionsStore in a cool, dry, ventilated area; avoid freezing
Packaging25 kg / 200 kg HDPE drums

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