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Dynasylan® PTMO

1 of 42 products in this brand
Dynasylan® PTMO exhibits trifunctional behavior as all three alkoxy groups can hydrolyze. This compound also features a propyl group that imparts hydrophobic attributes to sol-gel coatings. Hydrolysis initiates silanol group formation, leading to subsequent condensation reactions that yield stable siloxane bonds (-Si-O-Si-). Condensation progresses alongside hydrolysis, provided a certain amount of silanol groups are present. The speed and ratio of hydrolysis and condensation hinge on factors like pH, concentration, solvent, temperature, and catalyst.

Chemical Family: Silanes

Functions: Surface Modifier

Features: Low Viscosity

Technical Data SheetSafety Data Sheet

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Identification & Functionality

Chemical Family

Silanes

CASE Ingredients Functions

Surface Modifier

Technologies

CASE Ingredients

Product Families

CASE Ingredients — Additives

Surface Modifiers

Features & Benefits

CASE Ingredients Features

Low Viscosity

Applications & Uses

Markets

Paints & Coatings

Applications

Paints & Coatings — Industrial Coatings

Industrial Coatings

Application Characteristics
  • In some sol-gel applications Dynasylan® PTMO is partially hydrolyzed to form a preproduct that can be further crosslinked using temperature.
  • This pre-hydrolysis often is done in conjunction with other organofunctional silanes (e.g. Dynasylan® GLYMO), silicic acid esters or even an aqueous silica sol.
  • This pre-product can be further modified by addition of organic resins or inorganic nanoparticles such as AEROSIL®.
  • It is also possible to construct an inorganic/organic network by adding silanes containing organofunctional groups (e.g. aminopropyl groups) and organic resins.
  • The mixture is then cured using standard organic methods.
  • In this way it is possible to obtain mar resistant coatings having a higher UV-stability than traditional organic coatings.
  • This can also lead to more flame resistant materials than using traditional resins. Dynasylan® PTMO reacts faster with water than Dynasylan® PTEO.
  • To regulate the rate of hydrolysis and condensation a catalyst (mineral acids or ammonia, or even acetic acid and amines) can be added.
  • Hydrolysis can also be furthered by adding a co-solvent such as an alcohol.

Properties

Appearance
Colorless. low - viscous liquid
Technical Data
ValueUnitsTest Method / Conditions
Density (at 20°C)approx. 0.94g/cm³DIN 51757
Viscosity (at 20°C)approx. 0.7mPa.sDIN 53015
Flash Pointapprox. 35°CDIN 51755
Initial Boiling Pointapprox. 137°CDIN 51751

Regulatory & Compliance

Certifications & Compliance

REACH (Europe)

Chemical Inventories

AICS (Australia),

ECL (Korea),

ELINCS (EU),

ENCS (Japan),

IECSC (China),

PICCS (Phillipines),

TSCA (USA)

Packaging & Availability

Packaging Type

Drums

Packaging Information

Dynasylan® PTMO is sold in 25 kg and 180 kg drums.

Storage & Handling

Shelf Life
12 months
Storage Conditions
  • Dynasylan® PTMO must be stored with exclusion of moisture.
  • In a sealed container, the product has a shelf-life of 12 months with no loss of quality.