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PARSON
MH LINER
A structural lining to rehabilitate deteriorated
sewage structures with mild corrosion


DESCRIPTION:
    PARSON MH LINER is a spray applied, high strength, fiber-reinforced, Microsilica Mortar for use in restoring manholes, lift station wet wells and wastewater treatment plant structures or as an underlayment for PARSONPOXY SEL-80 or PARSONPOXY SEL-80HB Epoxy Coatings.

ADVANTAGES:
  • Cost-effective alternative to replacement
  • Stops infiltration and exfiltration
  • Restores structural integrity
  • Provides low to moderate corrosion protection
  • High strengths and Low Permeability
  • Excellent Bond to damp surfaces
  • Apply up to 3" in a single coat
  • Spincast, Spray Gun or trowel application
 MH Liner Microsilica Mortar for use in manhole rehabilitation

PHYSICAL PROPERTIES:
Compressive Strength
ASTM C-109

Flexural Strength ASTM C-78

Tensile Strength ASTM C-190

Shear Bond ASTM C-882 		28 days >9,000 psi


28 days >1,600 psi

28 days >800 psi

>2,000 psi 		Shrinkage ASTM C-157

Freeze/Thaw ASTM C-666

Chloride Permeability
AASHTO T-277

Density

 		28 days 0.0%

300 cycles, No damage

< 500 coulombs


130 pcf

SURFACE PREPARATION: Thoroughly clean and remove any loose or foreign materials including paints, dirt, oil, grease, surface coatings, laitance and any other bond-inhibiting material from surface to be coated, using minimum 3500 psi waterblast. Stop all active leaks. (Please refer to our Manhole Rehabilitation Specifications for product selections.) Surface should be Saturated Surface Dry (SSD) just prior to material application. Any standing water must be removed.

MIXING: Using a slow-speed mortar mixer, add approximately 3/4 gallon of clean, potable water per 50 lb. bag of PARSON MH LINER. Add water to mixer and then slowly add powder. Mix thoroughly for approximately 5 minutes until a uniform consistency has been obtained.

APPLICATION: Using low pressure spray equipment or trowel, apply mixed product on vertical, horizontal and overhead surfaces to a minimum thickness of up to 1/2”. Trowel or brush to a smooth finish as soon as possible, but within two hours. If additional material is required, apply up to 2” of product within 4–6 hours, then trowel or brush to a smooth finish as soon as possible, but within two hours. Do not apply to frozen surfaces.

COVERAGE: Approximately 10 sq. feet per 50 lb. bag at a thickness of 1/2 inch.

PACKAGING: Available in 50 lb. multiwall paper bags with moisture barrier.

SHELF LIFE: Shelf life is 2 years when stored at 70°F in unopened, tightly sealed bags in a dry area.

PRECAUTIONS: See MSDS for specific instructions. Use protective eye wear, cover exposed skin and use breathing protection.

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