Property

Silane terminated prepolymers

Polyurethane

Silicone

Environmental friendliness

10

5

9

Non-bubbling

10

6

10

Low temperature gunnability

10

8

10

Stain resistance

8

8

5

Weather resistance

8

6

10

Adhesion to various substrates

10

5

8

Mechanical properties

10

10

10

Heat resistance, mechanical stability

9

8

10

Non-dirt pickup

10

10

5

Storage stability

10

7

9

Paintability with water-based paint

10

10

3