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Tech Data

System-77

 
 

 

Packaging Available in kits or individually packaged resin tubes. The kit consists of 1 tube of each System 77 Leak Repair resin (2 total), 1 blue S77 Curing Light, mesh for reinforcing, and abrasive sand paper for creating the proper texture to insure proper adhesion. Resin tubes are also sold individually. The blue S77 Curing Light can also be purchased separately in the Shopping Cart.
Product Names SR 150, SR 250
Appearance/Color White/yellowish very viscous liquid
Description Photopolymerizable acrylic resin
Chemistry Acrylate
Odor Slight ester odor
Toxicity Not classified as hazardous under OSHA regulations
Electrical Properties Insulator
Resistance To Solvents Good
Temperature Resistance -65°F (-54°C) to 300°F (149°C)
Suggested Light Source Visible light cure: 470 nanometers, > 2.5mW/cm2
Portable light sources are available from Superior Industries based on LED technology. Sunlight is also an effective light source.
Vapor Pressure N/A
Vapor Density N/A
Flash Point N/DA
Boiling Point N/A
Freezing Point N/A
Flammable Limits Lower: N/DA; Upper: N/DA
Autoignition Temperature N/DA
pH N/A
Solubility In Water Insoluble
Curing Mechanism Exposure to a specific wavelength of light or when in direct contact of full sunlight
Potable Water SR 150 & SR 250 are safe according to Underwriters Laboratories Inc. in accordance wit ANSI/NSF Standard 61
Stability Stable
Extinguishing Media Water spray, carbon dioxide, dry chemical powder or foam
Unusual Fire And Explosion Hazards Emits toxic fumes under fire conditions. Heat-induced polymerization may cause closed containers to rupture or explode.
Conditions To Avoid Elevated temperatures, localized heat sources, oxidizing conditions, freezing conditions, direct

Tech Data Specific To Each Type Of Resin

SR 150-
Typical Uncured Properties:

Specific Gravity (cal.) 1.16@ 77°F (25°C)
Viscosity (Brookfield) 83,800 cps @ 77°F (25°C)

Typical Physical Properties Of Cured Material:

Hardness (ASTM D-1474,
ASTM E-384 (HV)
15 (Vickers, 25g, 18s)
Tensile Strength (ASTM D-638) 2,900 (psi)
Elongation (ASTM D-638) 2.3 (%)
Modulus (ASTM D-638) 137,000 (psi)

Typical Performance of Cured Material:
Block Shear strength test were conducted according to ASTM D-4501. A clear acrylic plate was bonded to each of the materials noted below. Conducting block shear strength tests according to ASTM D-4501, the following typical performance is noted:

Acrylic To FRP, Cured In Air (psi) 320
Acrylic To FRP, Cured Underwater (psi) 440
Acrylic To ABS, Cured In Air (psi) 740
Acrylic To ABS, Cured Underwater (psi) 620
Acrylic To PVC, Cured In Air (psi) 390
Acrylic To PVC, Cured Underwater (psi) 360

Pipe Repair Pressure Strength Performance:

3/4' diameter PVC pipe with wall thickness of 0.125'Repair hole diameter 0.040' Cured in air 100 psi

(Repair point was properly prepared with 150 grit sandpaper. Resin was applied using NSR Applicator tabs. Resin was cured using NSR light unit. Water pressure was maintained for more than 1minute. Test stopped at noted pressure with no failure.)

SR 250-
Typical Uncured Properties:

Specific Gravity (cal.) 1.14 @ 77°F (25°C)
Viscosity (Brookfield) 168,000 cps @ 77°F (25°C)

Typical Physical Properties Of Cured Material:

Hardness (ASTM D-1474, ASTM E-384 (HV) 14 (Vickers, 25g, 18s)
Tensile Strength (ASTM D-638) 3,500 (psi)
Elongation (ASTM D-638) 2.6 (%)
Modulus (ASTM D-638) 143,000 (psi)

Typical Performance of Cured Material:
Block Shear strength test were conducted according to ASTM D-4501. A clear acrylic plate was bonded to each of the materials noted below. Conducting block shear strength tests according to ASTM D-4501, the following typical performance is noted:

Acrylic To Aluminum, Cured In Air (psi) 230
Acrylic To Aluminum, Cured Underwater (psi) 260
Acrylic To Copper, Cured In Air (psi) 190
Acrylic To Copper, Cured Underwater (psi) 170
Acrylic To Steel (1018 carbon), Cured In Air (psi) 200
Acrylic To Steel (1018 carbon), Cured Underwater (psi) 100

Pipe Repair Pressure Strength Performance:

3/4' diameter Aluminum (2024-T6) pipe with wall thickness of 0.125' Repair hole diameter 0.052' Cured underwater 700 psi
3/4' diameter Aluminum (2024-T6) pipe with wall thickness of 0.125' Repair hole diameter 0.040' Cured in air 700 psi
3/4' diameter Copper pipe (75-15) with wall thickness of 0.125' Repair hole diameter 0.040' Cured in air 800 psi
3/4' diameter Copper pipe (75-15) with wall thickness of 0.125' Repair hole diameter 0.052' Cured underwater 800 psi

(Repair point was properly prepared with 150 grit sandpaper. Resin was applied using NSR Applicator tabs. Resin was cured using NSR light unit. Water pressure was maintained for more than 1minute. Test stopped at noted pressure with no failure.)

Application Instructions For Both Resin Types:

Directions for use:
SR 150 and SR 250 have syringe caps that twist on and off for multiple uses of resin..
The product is light sensitive and exposure to daylight will initiate curing process. When cured in an open-air (oxygen) environment, a slightly tacky surface will result. Use of applicator tabs are recommended for applications that prefer a tack-free surface. A light sanding with 150 grit sandpaper is recommended prior to application of the resin. For optimal adhesion, the surface should be clean of dust and dirt. An important consideration is the resin will cure on command only if the appropriate light reaches the resin.

1. Relieve pressure on pipe with hole.
2. Clean/roughen area with 150 grit sandpaper.
3. Cut applicator tab to desired size and apply resin to applicator tab.
4. Using applicator tab, apply gentle pressure.
5. Shine S77 Curing Light directly on the applicator tab/resin for 30 seconds or until fully cured.
6. Remove applicator tab. Note that resin covers an area larger than the actual hole.

For larger holes (1/4' or greater) use of fiberglass mesh is recommended. Lay fiberglass mesh on applicator tab. Apply resin to mesh material so it is fully moist. Follow steps 4& 5 from above. Apply a second coat of resin on top of mesh to insure a strong repair. Sand off any fiberglass strands. Do not pull.