NOLEAK POLYSULPHIDE SEALANT2

NOLEAK® PS GG

2K GUN GRADE UV RESISTANT POLYSULPHIDE SEALANT

NOLEAK® PS GG is two component, polysulphide polymer based, UV resistant, flexible, tear
resistant, rubbery, self-leveling, gun grade, non-staining sealant, which adheres to most of
building materials like cementitious substrates, aluminum, glass, wood, mild steel etc. NOLEAK®
PS GG cures at ambient temperature, has excellent recovery characteristics after extended period
of compression / elongation with outstanding resistance to most chemicals, weather conditions,
aging and shrinkage.

It conforms to BS 5212: 1990 Part I -Type F & Type FB (Flame and Fuel Resistant), IS 12118 Part
1 – 1987, BS:4254 and ASTM C 920.

Characteristics – Physical

  • Colour : Grey
  • Service Temp, OC : (- 40 to + 85)
  • Theoretical Coverage, grm / rm* : 550 For 25 mm x 12.5 mm
  • Staining : Nil
  • Solid Contents, % : 97 – 100
  • Application Temp, OC : 5 – 50
  • Setting Time, 35OC, hr : 6
  • Pot Life, 25OC, hr : 2
  • Specific Gravity : 1.60 - 1.70
  • Full cure, in tropical conditions : Up to 8 days
** Depending upon surface condition.

Characteristics - Technical

PropertyMethodResult
Elongation at break, %ASTM D 412450
Tensile Strength, kg / cm2ASTM D 4123
Adhesion bond strength Kg 2.5 cm (cohesive failure)BS 5212 Part 332
Shore A hardnessASTM D 224022 + 3
Movement Accommodation Factor, %
* Butt Joints
* Lap Joints		ASTM C 719
± 25
± 50

Application

  • Expansion joints in industrial, commercial or residential buildings.
  • Joints in concrete roads, bridges, subways, flyovers & airport runway.
  • Joints in water retaining structures like water tank, swimming pool including decks, aqua ducts, dams, canals & reservoirs.
  • Nuclear Power station reactor domes.
  • Joints between concrete pipe lines.
  • Roof light joints.

Advantages

  • Excellent UV resistant.
  • Provides uniform, water tight seal.
  • Adhesion compatible to most substrate.
  • Highly resilient with excellent recovery characteristics and thermal flexibility.
  • Prevents cracking by allowing expansion / contraction during atmospheric changes.
  • Flexible, tear resistant, rubbery, self-leveling.
  • Chemical / flame / fuel resistant.
  • After full cure
    • Can withstand in fully submerged condition, and
    • The Sealant is suitable for potable water as well.

Application Methodology

# Surface Preparation
  • Remove all loose gravel, dirt, oil, grease and foreign matter by jet of dry air and clean the surface mechanically or by grinding to make it smooth before application.
  • Ensure that the moisture content in the prepared surface does not exceed 5% immediately before application of NOLEAK® PSGG.
  • To avoid adhesion of spill-over material beside joint, use masking tape at floor level beside both sides to get sharp edged neat and clean joint.
  • Use back up material to avoid third face adhesion and to avoid contact between joint forming board & sealant.
  • Use primer on vertical side faces of the joint to ensure strong bonding between substrate and sealant.
# Material Preparation
  • Mix the entire quantity of Base and Accelerator compounds, which are pre-weighed, thoroughly to a homogenous and uniform grey compound by a slow speed mixture (approx. 400 rpm) fitted with a suitable mixing paddle.
  • Ensure that there is no entrapped air.
# Application of Materia
  • Ensure depth of the joint does not exceed its width.
  • Start applying the prepared mixer with Gun after 30 minutes of mixing on tacky primed surface. Use backup rod to adjust depth suitably.
  • Do not use NOLEAK® PS GG in grooves exceeding 50 mm inwidth

Finishing and Cleaning

  • Finish the joint in concave shape by using wooden batten soaked in soap water or white sprit from time to time.
  • Remove masking tape within 30 minutes before setting of sealant.
  • Clean tools and tackles using solvent like Xylene etc.

Health & Safety

  • Avoid contact with skin / eyes, and avoid swallowing.
  • Ensure adequate ventilation and avoid inhalation of vapour.
  • Wear suitable protective clothing, gloves and eye protection.
  • In case of skin contact, rinse with plenty of clean water, then cleanse with soap and water. Do not use solvent to clean the contacted area.
  • In case of eye contact, wash with plenty of clean water and seek medical advice.
  • If swallowed, seek medical attention immediately. Do not induce vomiting.

Packing

Available in 4 kg container packed in 16 kg carton, each container having pre-measured both components in proper ratio.

Storage

Store in a cool dry place, under shed, away from heat.

Shelf Life

12 Months from the date of manufacture when maintain in protected storage in original unopened sealed condition at 5 – 30 OC.