PAR CLEAN – R (RUST CONVERTER )
Liquid for cleaning re-bars & steel surfaces
PARCLEAN - R is a chloride free liquid rust converter. It is used effectively to clean rust from steel surfaces before applying any protective coating on it.

AREAS OF APPLICATION:
On rebars during repairs to reinforced concrete structures Maintenance of mild steel structures like tanks, water pipelines shuttering plates and other corroded steel surfaces.

FEATURES & BENEFITS:
• Simple application by brush
• Effective rust removal, even from areas difficult to reach
• Contains no chloride - no chance of enhancing corrosion
• Cost effective coverage

METHOD OF APPLICATION :
In case of heavy rusting of steel reinforcement, M.S. pipelines, M.S. plates or any other M.S. surface, remove the loose rust by wire brushing, chipping, hammering or grinding so that majority of rust scale is removed. Apply PARCLEAN - R on affected surface by using cotton waste swab or by brush application. Leave the surface to react with PARCLEAN - R for atleast 15 to 30 minutes. The rusty surface will change its colour to original blackish steel.Then remove the loose rust particles by scrubbing or simple dusting with the brush.When applied over corroded reinforcement steel, wash the surface with clean water before taking up further work of repairs.

TECHNICAL INFORMATION:
Appearance : Brown colour liquid
Specific Gravity : 1.12 ± 1.20
Nature : Acidic

PACKING :
1Kg,5 Kg, 10 Kg & 20 Kg

PARCOAT–S, a polymer based formulation forms a strong film on steel surface. This inhibits rusting and bonds well with concrete.

APPLICATIONS
• For coating of reinforcement bars especially in repairs.
• For protection of marine structures and buildings in saline and corrosive environment.
• For encased steel members in industrial buildings, high tensile wires/ strands/ cables as in pre-stressed concrete sections.

ADVANTAGES
• Total protection to all embedded steel members.
• Helps in good bonding of steel and concrete.
• Provides effective barrier to water and other corrosive elements.
• Easy to apply with a regular paint brush.

CHARACTERISTICS
State : Liquid
Colour : Green
Solid Content : 46%
pH : 9.0

GUIDELINES FOR USE:
1. Remove the rust from the steel surface using a wire brush followed by a treatment of PARCLEAN-R (Please see PARCLEAN–R data sheet).
2. Mix PARCOAT-S with cement in 1:1 ratio by weight to form a consistent slurry.
3. Apply this mixture on the steel surface with a brush.
4. Allow the coating to dry for 6 – 8 hrs.
5. Apply second coat to ensure that all pin holes are eliminated.
6. Allow the second coat to dry for 6 – 8 hrs before proceeding further.

The treated area is further repaired using PARCRETE J-540 OR PARCRETE A-440 bond coat followed by cement mortar modified with PARCRETE J-540 or PARCRETE A-440 to build up the new concrete layer by layer. (Please see PARCRETE J-540 or PARCRETE A440 data sheets)

PARCOAT–S covers about 80 sq. ft / coat / kg of steel surface.

STORAGE :
Stable under normal conditions. Should be stored away from direct sunlight.

HANDLING :
Use of gloves and safety glasses is recommended.

PACKING :
Available in1 kg, 5 kg, 10 kg and 20 kg.

PARCRETE–J540, an acrylic polymer, helps in strong adhesion of layers of concrete, in new constructions and rehabilitation.

APPLICATIONS
• In repair of damaged RCC structures.
• In repair of damaged industrial floors and RCC tanks.
• For restoration of old buildings.
• For repair of honeycombed structure
• For bonding of layers of concrete in new construction (construction joints).
• Mixed along with cement grout to stop water leakages.

ADVANTAGES
• Provide strong bonding between old & new concrete and helps absorb stresses due to differential expansion and contraction.
• Improves water impermeability.
• Provides high compressive, tensile & flexural strength.

CHARACTERISTICS
State : Liquid
Colour : Blue

GUIDELINES FOR USE:
Polymer Modified Mortar
1. After exposing the reinforcement, it is cleaned and treated with PARCLEAN–R and PARCOAT–S (Please see PARCLEAN–R AND PARCOAT–S data sheets).
2. The loose concrete around this area is then chipped away and removed.
3. Mix PARCRETE–J540 and cement in 1:1 ratio to form a consistent slurry.
4. Apply a bond coat using the above slurry with a fine brush to all the exposed concrete.
5. While the bond coat is still tacky, apply the PARCRETE–J 540 polymer mortar in paste or dough form (the ratios and procedure as shown below), build it up layer by layer, with each layer being not more than 15-20 mm at a time.
6. After the first layer is applied it is left to dry for 24 hours before the second layer is applied.
7. The process is repeated till the old concrete thickness is re-achieved.

Proportions:
PARCRETE–J 540 : I part by weight
Cement : 5 parts by weight
Quartz / River sand : 15 parts by weight (for beams and columns a mix of fine and coarse quartz / river sand in the ratio 40:60, while for slabs the fine to coarse ratio is 60:40)

The above are mixed till a dough-like consistency is reached. Small quantity of water (about 3 - 5% by weight of mortar mixture) may be added to help achieve ideal workability of the dough. A rough test to check the ideal work ability is to drop a fist sized ball made of this dough into the dough mixture from shoulder height. The dough should not shatter on impact.
8. After the polymer mortar has built up the concrete to its original thickness, the treated area is to be kept moist for 4 - 5 days before the final plaster coat is done in the usual manner.

Polymer Cement Grout
1. Take 1 kg of PARCRETE-J 540, 4 kg of cement and 2 - 3 kg of water (depending on the flow required) (Polymer : Water : Cement = 1 : 2-3 : 4) by weight.
2. Mix PARCRETE-J 540 and water for about 2 minutes.
3. Add this solution to the cement and mix till a consistent slurry is formed.
4. Grout as recommended.
5. Any modification in the proportion may be made in consultation with your RCC consultant or our technical services.

STORAGE :
Stable under normal conditions. Should be stored away from direct sunlight.

HANDLING :
Use of gloves and safety glasses is recommended.

PACKING :
Available in1 kg, 5 kg, 10 kg, 20 kg and 50 kg.

PARCRETE–A 440, a SBR based polymer, helps in strong adhesion of layers of concrete, in new constructions and rehabilitation.

APPLICATIONS
• In repair of damaged RCC structures.
• In repair of damaged industrial floors and RCC tanks.
• For restoration of old buildings.
• For repair of honeycombed structure
• For bonding of layers of concrete in new construction (construction joints).
• Mixed along with cement grout to stop water leakages.

ADVANTAGES
• Provide strong bonding between old & new concrete and helps absorb stresses due to differential expansion and contraction.
• Improves water impermeability.
• Provides high compressive, tensile & flexural strength.

CHARACTERISTICS
State : Liquid
Colour : Reddish Blue

GUIDELINES FOR USE:
Polymer Modified Mortar
1. After exposing the reinforcement, it is cleaned and treated with PARCLEAN–R and PARCOAT–S (Please see PARCLEAN–R AND PARCOAT–S data sheets).
2. The loose concrete around this area is then chipped away and removed.
3. Mix PARCRETE–A 440 and cement in 1:1 ratio to form a consistent slurry.
4. Apply a bond coat using the above slurry with a fine brush to all the exposed concrete.
5. While the bond coat is still tacky, apply the PARCRETE–A 440 polymer mortar in paste or dough form (the ratios and procedure as shown below), build it up layer by layer, with each layer being not more than 15-20 mm at a time.
6. After the first layer is applied it is left to dry for 24 hours before the second layer is applied.
7. The process is repeated till the old concrete thickness is re-achieved.

Proportions:
PARCRETE–A 440 I part by weight
Cement 5 parts by weight
Quartz / River sand 15 parts by weight (for beams and columns a mix of fine and coarse quartz / river sand in the ratio 40:60, while for slabs the fine to coarse ratio is 60:40)

The above are mixed till a dough-like consistency is reached. Small quantity of water (about 3 - 5% by weight of mortar mixture) may be added to help achieve ideal workability of the dough. A rough test to check the ideal work ability is to drop a fist sized ball made of this dough into the dough mixture from shoulder height. The dough should not shatter on impact.
8. After the polymer mortar has built up the concrete to its original thickness, the treated area is to be kept moist for 4 - 5 days before the final plaster coat is done in the usual manner.

Polymer Cement Grout
1. Take 1 kg of PARCRETE-A 440, 4 kg of cement and 2 - 3 kg of water (depending on the flow required) (Polymer : Water : Cement = 1 : 2-3 : 4) by weight.
2. Mix PARCRETE-A 440 and water for about 2 minutes.
3. Add this solution to the cement and mix till a consistent slurry is formed.
4. Grout as recommended.
5. Any modification in the proportion may be made in consultation with your RCC consultant or our technical services.

STORAGE :
Stable under normal conditions. Should be stored away from direct sunlight.

HANDLING :
Use of gloves and safety glasses is recommended.

PACKING :
Available in1 kg, 5 kg, 10 kg, 20 kg and 50 kg.

PAR MICRO Flowable Mortar for repairs to damaged reinforced concrete members PAR MICRO is supplied as a ready to use dry powder which requires only addition of clean water at site to produce a free flowing non shrink repair micro concrete. This is a cementitious material, with additives, which impart controlled expansion characteristics in the plastic state while minimising water demand. This is specially designed for repairs to damaged reinforced concrete elements, particularly where areas is restricted and where vibration of the placed material is difficult or impossible.

AREAS OF APPLICATION:
Repair to damaged reinforced concrete elements like beams, columns, wall etc., where access is restricted and compaction is not possible. For Jacketing of RCC columns to increase load taking capacity (strengthening of a vertical member)

FEATURES & BENEFITS:
• Can be pumped or poured into restricted locations
• Flowable mortar hence does not require compaction
• Gaseous expansion system compensates for shrinkage and settlement in the plastic state Develops
• high initial and ultimate final strengths
• Offers excellent resistance to moisture ingress
• Makes repaired sections highly durable
• Can be applied at 100 mm thickness at one stroke
• Contains no chloride admixture
• Rapid strength gain to facilitate early reinstatement

METHOD OF APPLICATION :
Clean the surface and remove loose concrete, any dust, oil, paint grease etc., Expose fully any corroded steel in the repair area and remove all scale and corrosion deposits. Shot blasting is highly recommended Apply PARCLEAN-R and PARCOAT-S over the rusted re-bars For a dry substrate, it should be primed by applying one coat of slurry formed by mixing 1 kg of PARCRETE J 540 with 1 kg of cement. Mix PAR MICRO with water (5.5 to 6 litres per 40 kg bag) till homogeneous mix is obtained, at 30oC Mixing should be done thoroughly with a forced action mixer of adequate capacity, atleast for 5 minutes Pour or pump the mixed PAR MICRO into a watertight shuttering in the repaired area, when primer becomes tacky Cure the repaired surface for minimum 7 days.

PRECAUTIONS & LIMITATIONS:
• PAR MICRO can applied in section upto 100 mm deep.
• For thickness more than 100 mm, addition of pre-calculated aggregates may be required. Consult local PAR office for more details.
• Strictly follow water-powder ratio as specified.
• Ensure that the shuttering is 100% watertight.
• Ensure full exposure of reinforcement steel.
• Consult structural engineer if the diameter of rebar is reduced by more than 20% than original diameter.

TECHNICAL INFORMATION:
Compressive strength : 100 kg/cm2 at 1 day
200 kg/cm2 at 3 days
300 kg/cm2 at 7 days
400 kg/cm2 at 28 days
Flexural strength : 50 kg/cm2 at 28 days
% water absorption after 24 hrs : 0.45
Chloride content : Nil
Depth of carbonation, mm : Passes the Accelerated carbonation test
2 hours : Nil
4 hours : Nil
Coefficient of thermal expansion : 10 - 12 x 10 -6 / OC
Yield : 22 ltrs
Coverage : 2.2 sqm per 40 kg pack at 10 mm thickness

PACKING :
40 kg

PAR CRACK FILL - PASTE
Ready to use Crack filler for internal & external surface cracks in plaster
PAR Carck Fill - Paste is a single pack, ready to use flexible putty for filling the cracks in plastered surfaces.

AREAS OF APPLICATION:
Internal & external Plastered brick masonry wall cracks of upto 5 mm width

FEATURES & BENEFITS:
• Paste form, easy to apply
• Flexible, therefore does not crack & accommodates minor movements in cracks
• Water based - hence eco-friendly
• Can be applied on damp surfaces but not on cracks with running water
• Over coatable after 24 hours
• Non-staining
• Excellent adhesion with cementitious surface
• UV resistance
• It can be tinted using water-based stainers.

METHOD OF APPLICATION :
• Surface must be free from dust, oil, grease, and loose particles etc. Moisten the surface before applying PAR Carck Fill - Paste.
• Fine hair line cracks must be widened up to 1 mm minimum and then filled
• For filling PAR Carck Fill - Paste on the internal surface, existing POP or painter's putty must be removed till plaster surface is exposed.
• For porous surfaces, apply primer coat prepared with PAR Carck Fill - Paste and water in 1:1 proportion over the crack. Fill PAR Carck Fill - Paste when the surface is tacky and not dried completely.
• Press PAR Carck Fill - Paste firmly into the crack with a spatula or putty knifes and level with the surface Care must be taken to avoid formation of cavities or bubbles during application.
• Further POP or painter's putty application can be taken up once it is fully dry For best results allow PAR Carck Fill - Paste to cure for 7 days.

PRECAUTIONS & LIMITATIONS:
• Should not be used for cracks more than 5 mm thick
• Not for application in cracks in structural members, expansion joints & separation gaps.
• Not for cracks in POP or painter's putty
• For application below 10OC, drying time will be delayed
• Container to be tightly closed after application
• Clean tools and hands with soap and warm water

TECHNICAL INFORMATION:
Appearance : White
Full curing time : 7 days at 30OC
Specific gravity : 1.40 ± 0.02 gm/cc
Coverage : 25-30 running meter/kg (for a length of 1 metre, and depth and width of 5 mm)

PACKING :
1 kg & 25 kg