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BUP 690 is a pre-promoted (amine-accelerated) orthophthalic based unsaturated polyester resin with low viscosity, very good mechanical properties and outstanding filler binding power for ambient temperature cure with MEK peroxide.

Chemical Family: Polyesters

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
CASE Ingredients Functions
Technologies

Features & Benefits

Characteristics and Advantages
  • Low viscosity
  • Very good mechanical properties
  • Outstanding filler binding power

Applications & Uses

Uses

Mastic and stone adhesive for stone industries

Properties

Appearance
Clear, Greenish
Typical Properties
ValueUnitsTest Method / Conditions
Acid numberMax 26mg KOH/gASTM D1639
ColorNAGardnerASTM D1544
Curing time44294minASTM D2471
Density (at 23°C)1.1227g/cm³ASTM D1475
Flash point (open cup)20°CASTM D92
Flexural modulus3704MPaISO 178
Flexural strengthMin 120MPaISO 178
Gel Time44207minASTM D2471
Hardness (Barcol)min. 44-ASTM D2583
Heat distortion temperature (HDT)Min 70°CASTM D648
Linear shrinkage (ΔL/L)Max 1.4%ASTM D2566
Peak exothermic temperatureMax 210°CASTM D2471
Solid content63±2wt%ASTM D1259
Tensile elongation5.7%ISO 527-2
Tensile modulus944MPaISO 527-2
Tensile strengthMin 65MPaISO 527-2
Viscosity (at 25°C)300-450mPa.s (cP)ISO 2555
Water absorptionMax 0.3wt%ISO 62

Safety & Health

Product safety and Environmental protection

The usual protective measures employed during the handling of Unsaturated Polyester Resins should be observed. Further product safety information can be obtained from our Material Safety Data Sheet which is available on request.

Packaging & Availability

Packaging

225 kg (net) in steel drums

Storage & Handling

Storage

Store in a cool place below 25 °C and away from moisture and direct sunlight. Under above mentioned storage conditions, the shelf life of the resin will be at least 3 months ex-works.