BIOTREND® CTL40-D is an industrial fungicide containing 2,4,5,6-tetrachloroisophthalonitrile (Chlorothalonil), designed to prevent deterioration and discoloration caused by fungi and mildew in various applications.

Chemical Family: Chloronitriles

Labeling Claims: Formaldehyde releasing substances-free, Formaldehyde-free, Heavy Metal-free, High Purity, Low Odor, Low VOC, Non-Flammable, Non-Phenolic, Phenol - Free

Physical Form: Liquid

Synonyms: 1,3-Dicyanotetrachlorobenzene, 2,4,5,6-Tetrachloro-3-cyanobenzonitrile, m-Tetrachlorophthalonitrile, Meta-Tetrachlorophthalodinitrile, Tetrachloroisophthalodinitrile, Tetrachloroisophthalonitrile, TPN

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Identification & Functionality

Features & Benefits

Labeling Claims
CASE Ingredients Features
Industrial Additives Features
Materials Features
Product Benefits
  • Broad spectrum fungicide effective for mold prevention and sap-stain control
  • Easy to use liquid formulation
  • Resists leaching – low water solubility
  • Excellent thermal stability and shelf stability
  • EPA registered for use in and around homes
  • Compatible with ZnO in latex paints
  • Broad compatibility with most coatings systems
  • Effective over wide pH range (1-10)
  • Cost effective use levels: 0.5% to 2.0%
Light Stability

Chlorothalonil is stable to ultraviolet radiation in aqueous media and in the crystalline state.

Applications & Uses

Markets
Applications
Compatible Substrates & Surfaces
Adhesive & Sealant End Applications
Coating End Applications
Industrial Additives End Use
Use Level
5.0 - 10.0 lbs/100 gallons (Interior), 10.0 - 20.0 lbs/100 gallons (Exterior)
Product Applications
  • Typical uses are paints & coatings, caulks, sealants, adhesives, and mulch colorants. BIOTREND CTL40-D’s superior long-term performance is due mainly to its very low water solubility and leach resistance, as it remains longer in the coating film.
  • BIOTREND CTL40-D has also proven itself as a highly effective long-term mold preventative in building products including composite wood, freshly sawn wood, pressure treatment and wallboard.
  • Additionally, Chlorothalonil is a common fungicide universally employed in agriculture, first registered in the U.S. in 1966 and used to protect a wide range of crops from fungal disease including lawns, peanuts, potatoes and tomatoes.
  • Chlorothalonil may not be compatible with all formulation components. Before commercial use and introduction, formulations incorporating BIOTREND CTL products should be fully evaluated for efficacy, compatibility, and stability. In general, BIOTREND CTL products should be incorporated near the end of the manufacturing cycle. Incompatibility may be indicated by loss of efficacy, color changes, changes in viscosity and/or pH, and reduced storage stability. Under certain conditions, use of chlorothalonil may contribute to chalking of dark colored paints.
Formulation Applications

BIOTREND CTL40-D is registered for protection of the following applications: latex emulsion paints, stains, and coatings, aqueous adhesives, aqueous caulks and sealants, freshly sawn wood (sapstain and mold), decay and mold protection in composite wood products (including wood-thermoplastic composites [WPC’s]), pressure treatment, wallboard (drywall & gypsum board), concrete, masonry, and porous and non-porous hard surface substrates.

Properties

Physical Form
Appearance
Beige liquid
Odor
Mild odor
Physical Properties
ValueUnitsTest Method / Conditions
Active Percentmin. 40.4%-
pH Value6.0 - 8.0--
Volatile Organic Compound ContentLow--
Flash PointNot flammable--
Physico-Chemical Properties
ValueUnitsTest Method / Conditions
Molecular formulaC₈Cl₄N₂--
Specific Gravity1.235--
Molecular Weight265.9--
Freezing Point-5°C-

Regulatory & Compliance

Certifications & Compliance
Chemical Inventories

Packaging & Availability

Packaging Type
Supplied by
Packaging Information

BIOTREND CTL40-D is available in 309 lb. drums and 3,200 lb. totes

Storage & Handling

Shelf Life
2 years