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Table 1. Characteristics of caulks and sealants used in pest exclusion.

Material*

Max. Joint Movement

Surface Compatibility**

(Years) Life*** Expectancy

Service Temp

Application Temp.

Paintable
CAULKS
Oil Based 2% non-porous

1-2 ext,

10 int

-20 to 180F

(-30 to 82C)

>40 F

(4 C)

yes
Butyl 7.5%

most, esp. masonry, concrete

7-10

-20 to 200F

(-30 to 93C)

>40 F

(4 C)

yes

slow cure

Latex 2% most 3-5 int

-20 to 150F

(-30 to 65C)

>40 F

(4 C)

yes

fast cure

Acrylic Latex

2% most

1-2 ext

3-10 int

-20 to 180F

(-30 to 82C)

>40 F

(4 C)

yes

Urethane Foam

0% most 10-20, if protected

-20 to 250F

(-30 to 120C)

>70 F

(21 C)

yes
SEALANTS

Siliconized Acrylic Latex

25%

most, except

plastics

20-30

-20 to 180F

(-30 to 82C)

>32 F

(0 C)

yes

Ethylene Copolymer (GeocelTM)

25%

most, except

plastics

10-20

-20 to 200F

(-30 to 93C)

>0 F

(-18 C)

yes
Polysulfide 25% varies 10-20

-40 to 250F

(-40 to 120C)

>60 F

(15 C)

unknown
Urethane 25% most, except glass 20-30

-40 to 250F

(-40 to 120C)

>40 F

(4 C)

unknown
Silicone 12-50% varies 20-30

-65 to 350F

(-54 to 175C)

>0 F

(-18 C)

no

* Except ethylene copolymer, materials listed in this column are manufactured and sold by several companies.

** How well the material adheres to different substrates. "Varies" indicates much variability in surface compatibilities among the products within a certain class of material. Manufacturers should be consulted for specific information on the suitability of their products for different uses.

*** ext=exterior use, int=interior use --- materials with shorter exterior than interior life are subject to accelerated breakdown by UV light, oxidation and weathering