Exhibit4A_roadsaver_silicone_Product.pdf

©2003, Crafco, Inc., All Rights Reserved

420 N. Roosevelt Ave. • Chandler AZ 85226

1-800-528-8242 • (602) 276-0406 • FAX (480) 961-0513

www.crafco.com

PRODUCT DATA SHEET

ROADSAVER SILICONE

PART NO. 34902

MAY 2003

READ BEFORE USING THIS PRODUCT

GENERAL Crafco RoadSaver Silicone is a uniquely formulated low modulus non-sag product produced for sealing joints in portland cement concrete pavements in all climates. The product is supplied as a ready-to-use one component moisture curing system which provides a lasting and flexible seal. Crafco RoadSaver Silicone can be used in all typical concrete joint applications on highway and airfield pavements. Crafco RoadSaver Silicone offers outstanding weathering resistance, remains flexible down to temperatures as low as –50°F (-46°C), is jet-blast resistant and will maintain field serviceability when exposed to intermittent fuel and oil spills. The sealant bonds strongly to portland cement concrete joints without the use of a primer. RoadSaver Silicone sealant is compatible with asphalt pavement. RoadSaver Silicone is easily applied to pavement joints using bulk dispensing system units such as those available from manufacturers including Pyles/Graco and Johnstone.

SPECIFICATION CON

departments,federal agencie Applied Single Component, specifications several of the D ASTM D5893 Physical Re Cure Evaluation Rheological Properties (AS Extrusion Rate (ASTM C11 Tack Free Time (ASTM C Effects of Heat Aging (AST Bond, -29°C (-20°F), 100%

Non-Immersed Water Immersed Oven-Aged

Hardness (ASTM C 661) -29°C (-20°F), Typ 23°C (73°F), Type

Flow Rubber Properties in Tensi

Ultimate Elongation Stress at 150% Elon

Effects of Accelerated Wea Resilience Additional properties of R Specific Gravity (ASTM D Adhesion to Concrete (MIL Bond and Movement Capab Bond to Mortar (AASHTO Tensile Adhesion, %(ASTM Notes: (1) Speci and 50 +/

(2) Speci

(3) Speci relative hu

APPLICATION The unit w (0.6cm) deep joint. Exact yiel

USAGE GUIDELINES RoadSaver Silicone pavement temperature performance limits are 82-46 for joint sealing. Usage recommendations are shown in Crafco pavement temperature grade charts shown at the right. Refer to Crafco Product Selection Procedures to determine sealant or filler and pavement temperature grades.

High Temperature Grade (°C)

°C 58 64 70 76 82

-4 -10 -16 -22 -28 -34 -40

-46 Lo w

T em pe ra tu re

G ra de

C

Suited for Use

Recommended

Performance Limits

Not Recommended FORMANCE Crafco RoadSaver Silicone conforms to specifications for low modulus silicone for many highway s and the FAA. The product also meets and exceeds all requirements of ASTM D5893. "Standard Specification for Cold- Chemically Curing Silicone Sealant for Portland Cement Concrete Pavements" for type NS sealant. In the following

5893 parameters are more restrictive to better reflect properties of RoadSaver Silicone.

quirements ASTM D5893 NS Requirements RoadSaver Silicone Requirements Pass at 21 days Pass at 14 day max TM D2202) 0.30 in(7.6mm)max slump 0.30 in (7.6mm) max slump

83) Type S, 50 ml/min. minimum Type S, 50 ml/min. minimum

679) 5 hr. max. 25-90 minutes M C 792) 10% max. Loss 10% max. Loss Extension Pass 5 Cycles Pass 5 Cycles Pass 5 Cycles Pass 5 Cycles Pass 5 Cycles Pass 5 Cycles e A2 25 max. 20 max.

00 30 min. 30 min.

No flow No flow on 600% min. 800% min.

gation 310 K pa (45 psi) max. 310 K pa (45 psi) max.

thering Pass 500 hours Pass at 5000 hours 75% min. 75% min.

oadSaver Silicone Sealant are:

792-A) (1) 1.15-1.515 8802) (2) 20 pli (3.5 kg/cm) min.

ility +/- 50% (ASTM C719) (2) Pass 10 cycles

T132) (2) 50 psi (34.4 N/cm2) min.

D5329) (3) 400% min.

mens shall be obtained from 1/8 inch (3mm) thickness sheets of material cured for 7 days at 77 +/- 3°F (25+/-2°C)

- 5% relative humidity.

mens cured for 28 days at 77 +/- 3°F (25+/-2°C) and 50 +/- 5% humidity prior to testing.

mens shall be 1/2" x 1/2" x 2" (1.2cm x 1.2cm x 5.0cm), cured 7 days at 77 +/- 3°F (25+/-2°C) and 50% +/- 5% midity.

eight is 10.9 pounds per gallon (1.31 kg/L). One gallon will seal 150 feet (45.7m) of 1/2 inch (1.2cm) wide by 1/4 inch d will vary depending on thickness of sealant, waste, application techniques, etc. Prior to use, the user must read and

Pavement Temp for Sealant Usage

©2003, Crafco, Inc., All Rights Reserved follow Application Instructions for RoadSaver Silicone (January 2002) to verify proper product selections, applicator pumps, pavement preparation procedures, application geometry, usage precautions and safety procedures. These instructions are provided with each drum of sealant.

PACKAGING Roadsaver Silicone Sealant is packaged in plastic lined open head 55 gallon (208 L) drums which contain 50 gallons (189 L) of material. Additionally, for small applications the sealant is available in plastic 5 gallon (19 L) pails and quart (0.95 L) caulking tubes.

WARRANTY CRAFCO, Inc. warrants that CRAFCO sealants meet applicable ASTM, AASHTO, Federal or State specifications at time of shipment.

Techniques used for the preparation of the cracks and joints prior to sealing are beyond our control as are the use and application of the sealants; therefore, Crafco shall not be responsible for improperly applied or misused sealants. Remedies against Crafco, Inc., as agreed to by Crafco, are limited to replacing nonconforming product or refund (full or partial) of purchase price from Crafco, Inc. All claims for breach of this warranty must be made within three (3) months of the date of use or twelve (12) months from the date of delivery by Crafco, Inc. whichever is earlier. There shall be no other warranties expressed or implied. For optimum performance, follow Crafco recommendations for sealant installation.