Chart of Applications and Properties of Cements

CEMENT TYPE

COMPONENT

CURE SPEED

VISCOSITY

CURED
ND

TRANS. %

SHORE
D

CHEMICAL
RESISTANCE

GLASS

CRYSTALS

METAL

PLASTICS

TEMP RANGE

TYPE C-59
MIL-A-3920

2

3hrs @ 70C
7 days @ 20C

250 CPS
To
320 CPS

1.55

90% TO 98%
from
320nm-2.5um

90

EXCELLENT-ACIDS
ALKALIS-SOLVENTS

E

E

G

F

EXCEEDS
-54C to +100C

TYPE M-62
MIL-A-3920

2

1.5 HRS @ 70C
4.5 DAYS @20C

250 CPS
To
320 CPS

1.55

90% TO 98%
from
320nm-2.5um

90

EXCELLENT-ACIDS
ALKALIS-SOLVENTS

E

E

G

F

EXCEEDS
-54C to +100C

TYPE F-65
MIL-A-3920

2

24 HRS @20C

250 CPS
To
320 CPS

1.55

90% TO 98%
from
320nm-2.5um

90

EXCELLENT-ACIDS
ALKALIS-SOLVENTS

E

E

G

F

EXCEEDS
-54C to +100C

TYPE RD 3-74

2

24 HRS @20C

250 CPS
To
320 CPS

1.55

90% TO 98%
from
320nm-2.5um

90

FAIR - SOME
ALKALIS-SOLVENTS

E

E

G

G

-54C to +100C

TYPE DC-90

2

72 HRS @20C
UV Sensitized

250 CPS
To
320 CPS

1.55

90% TO 98%
from
320nm-2.5um

90

EXCELLENT-ACIDS
ALKALIS-SOLVENTS

E

E

G

F

EXCEEDS
-54C to +100C

TYPE UV-69

1

1.5 HRS @ 365nm
1" from
Element

250 CPS
To
320 CPS

1.55

90% TO 98%
from
320nm-2.5um

90

EXCELLENT-ACIDS
ALKALIS-SOLVENTS

E

E

G

F

EXCEEDS
-54C to +100C

TYPE J-91
MIL-A-3920

1

1 HR @ 365nm
1" from
Element

250 CPS
To
300 CPS

1.55

90% TO 98%
from
320nm-2um

90

VERY GOOD-SOME
ALKALIS-SOLVENTS

E

E

E

F

-54C to +125C

TYPE VTC-2

1

1 HR @ 365nm
1" from
Element

6000 CPS To
10,000 CPS

1.5

90% TO 98%
from
320nm-1.5um

75

VERY GOOD-SOME
ALKALIS-SOLVENTS

E

E

E

G

-54C to +125C

TYPE P-92
CEMENT/
SEALENT

1

1 HR @ 365nm
1" from
Material

900 CPS
To
1400 CPS

1.52

90% TO 98%
from
320nm-1.5um

35

VERY GOOD-SOME
ALKALIS-SOLVENTS

E

E

E

F

-30C to +70C

TYPE SK-9

1

1 HR @ 365nm
1" from
Element

80 CPS
To
100 CPS

1.49

90% TO 95%
from
400nm-1um

90

GOOD-SOME
ALKALIS, ACIDS, SOLVENTS

E

E

E

E

-30C to +80C

TYPE EK-93
STRUCTURAL
EPOXY
MIL-A-24456

2

8 HRS @ 20C

>25,000
CP

Opaque

Opaque
Grey

>95

  EXCELLENT-ACIDS, ALKALIS-
SOLVENTS

E

E

E

E

-50C to +90C

MILBOND TYPE
I & II
STRUCURAL
ELASTOMERIC
EPOXY
MILL-A-48611

4

3 Days @ 70C
7 Days @ 20C

10,000 CPS To
15,000 CPS

Opaque

Opaque
Brown

80 to 90

EXCELLENT-ACIDS, ALKALIS- SOME
SOLVENTS

E

E

E

E

Exceeds
-50C to +150C

E=Excellent   G=Good   F=Fair

For more complete and specific information on a particular cement, refer to our catalog. All quantitative figures were arrived at 96 to 120 hours after full cure was attained. Cure times for 1 component UV curing cements presuppose substrate transmission >75%. Some plastics have very low UV transmission and will take longer to cure. Light sources for curing cements were from 4 watts to 15 watts/320mw/cm2 to 1200mw/cm2 @ 1" to 3".Nominal bond layer thickness for optical cement were .0003" to .0005" (8 to 10mm).


Back to Main Menu