Dynasylan® VPS SIVO 280

Identification & Functionality

Chemical Family

Siloxanes

CASE Ingredients Functions

Adhesion Promoter,

Coupling Agent,

Surface Modifier

Technologies

CASE Ingredients

Product Families

CASE Ingredients — Additives

Functional Additives,

Surface Modifiers

Features & Benefits

Labeling Claims

Low VOC

CASE Ingredients Features

Controls VOC,

Good Mechanical Properties,

Good Moisture Resistance,

Improved Flexibility,

Improved Substrate Wetting,

Water Resistance

Applications & Uses

Markets

Adhesives & Sealants,

Paints & Coatings

Applications

Adhesives & Sealants — Building & Construction

Sealants & Caulks

Paints & Coatings — Industrial Coatings

Industrial Coatings

Compatible Polymers & Resins

Butyl Rubber (IIR),

Poly(Methyl Methacrylate) (PMMA),

Polyurethanes (PU),

Silicones

Compatible Substrates & Surfaces

Aluminum,

Metal,

Plastics

Application Characteristics

• VPS SIVO 280 is a versatile product that provides improved product performance and quality.
• VPS SIVO 280 is soluble in alcohols, aliphatic and aromatic hydrocarbons, but it can undergo reactions with ketones or ester solvents.
• VPS SIVO 280 is considered primarily as an additive in moisture curable adhesives & sealants to eliminate the need for special primers in numerous bonding applications.
• Loading levels of 0,5 to 2,0 wt. % of VPS SIVO 280 as an additive - calculated on the overall formulation - are typically recommended.
• VPS SIVO 280 has been developed mainly for use in:
  • MS Polymer®
  • Silane modified polyurethane/ polyether
  • RTV-1/RTV-2 silicones
  • Butyl rubber
• The compatibility of other ingredients with VPS SIVO 280 should be tested in advance.
• Key Benefits VPS SIVO 280 exhibits excellent wetting on substrates and it can form weather- and moisture-resistant bonds to substrates which are partially difficult to adhere.
• The main benefits of VPS SIVO 280 in silylated polyurethane or MS polymer based adhesives & sealants are:
  • Improved adhesion to plastics, especially to polymethylmethacrylate (PMMA)
  • Improved adhesion to aluminum
  • Well-Balanced mechanical properties
  • Significant VOC-reduction compared to conventional amino silanes

Properties

Technical Data

	Value	Units	Test Method / Conditions
Density (at 20°C)	approx. 1.15	g/cm³	DIN 51757
Viscosity (at 20°C)	max. 3	mPa.s	DIN 53015
Flash Point	min. 95	°C	DIN EN 22719

Packaging & Availability

Packaging Type

Drums,

Pails,

Totes (IBC)

Packaging Information

VPS SIVO 280 is available in 25 kg pails, 200 kg drums and 1.000 kg IBC's.

Storage & Handling

Shelf Life

9 months