3M

• Polyurethane Construction Sealant 525 • Polyurethane Sealant 540

• Polyurethane Adhesive Sealant Fast Cure 550 • Polyurethane Adhesive Sealant 551

• Polyurethane Adhesive Sealant 560

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Application Ideas

Market

3M™ 500-Series Polyurethane Products:

525

540

550FC

551

560

General Industrial

X

X

X

X

X

Construction

X

X

X

X

X

Marine

–

X

X

X

–

Specialty Vehicle

–

X

X

X

X

Seals expansion

joints, construction

panels, roofing

tiles. Bonds well

to concrete.

Seals lap seams

on trucks, trains,

trailers, etc.,

and construction

panels.

Bonds and seals

many diverse

materials. Marine

deck to hull

bonding.

Bonds and seals

many diverse

materials.

550-type adhesive

sealant with longer

open time for use

in large surface

area applications.

Bonds floors,

exterior / interior

panels, roofs for

trucks, trains,

trailers, vans, etc.

Technical Data

Note: The following technical information and data should be considered representative

or typical only and should not be used for specification purposes.

Properties

3M™ 500-Series Polyurethane Products:

525

540

550FC

551

560

Tack-Free Time @ 73°F and 50%

Relative Humidity

90 - 150

minutes

60 - 90

minutes

50 - 90

minutes

2 - 3

hours

50 - 60

minutes

Rate of Cure @ 73°F and 50%

Relative Humidity

1/8" (3 mm)

per 24 hour

1/8" (3 mm)

per 24 hour

3/16" (4 mm)

per 24 hour

3/16" (4 mm)

per 24 hour

3/16" (4 mm)

per 24 hour

Shore A Hardness (ASTM C661)

25

40

45

45

55

Tensile Strength (ASTM D412)

400 psi

(2.6 MPa)

300 psi

(2.1 MPa)

450 psi

(3.1 MPa)

450 psi

(3.1 MPa)

580 psi

(4 MPa)

Elongation at Break (ASTM D412)

>600%

>600%

>600%

>600%

>300%

100% Modulus (ASTM D412)

75 psi

(0.5 MPa)

125 psi

(0.9 MPa)

150 psi

(1.0 MPa)

190 psi

(1.3 MPa)

145 psi

(1.0 MPa)

Service Temperature

-22°F - 176°F

(-30°C - 80°C)

-40°F - 194°F

(-40°C - 90°C)

-40°F - 194°F

(-40°C - 90°C)

-40°F - 194°F

(-40°C - 90°C)

-40°F - 194°F

(-40°C - 90°C)

Specific Gravity

1.17

1.17

1.17

1.17

1.17

Consistency

Medium paste

Medium paste

Medium paste

Medium paste

Medium paste

VOC Content

35.1 g/l

53.7 g/l

29.0 g/l

36.5 g/l

56.0 g/l