Engineering Services International

PERMANAR(Waterproofing and joint sealing compounds, bonding agent for concrete) is an acrylic-styrene based polymeric compound that feature excellent bonding properties as well as providing resistance to water. It has also provides good resistance to acids and is made available in two grades including PERMANAR-F and PERMANAR-D.

 

Having a density of 0.9 and a pH of about 6.0, PERMANAR-F is a sealant of low viscosity and is of off-white colour. It is characterized by high flexibility of over five hundred percent and used in sealing hairline & wide cracks including expansion joints on roof as well as other structures. With application on both dry and wet surfaces, should it be exposed to ultraviolet rays, calcium carbonate or flyash should be also spread on it when it is still sticky.

 

PERMANAR-D has excellent resistance to water & good resistance to acids. It helps in providing a hard coating an can be mixed with aggregates to prepare polymer concrete or mixed with cement, concrete & plaster to improve bond. Both PERMANAR-F & PERMANAR-D also have excellent bondig strength to concrete and masonry. PERMANAR-D is also used as admixture to improve bond of old concrete to new concrete.

 

APPLICATION:

• The length along crack to be treated should be thoroughly cleaned & made free from dust, laitance, foreign bodies
• PERMANAR-F or PERMANAR-D is then poured along crack length and is pushed into crack by continuous brushing or by other means
• Should the joints, treated with PERMANAR-F or PERMANAR-D be topped with other construction, sand is spread for better bonding when PERMANAR-F or PERMANAR-D treatment is still sticky
• Loose & un-bonded excess sand on treated area is removed by light brooming after sealant surface dries (Prior to application of the overlying construction)

 

TYPICAL USES:

• PERMANAR-F & PERMANAR-D is used to seal many fine as well as wide cracks on old roofs of lime concrete jack arches at Halisahar and Kanchrapara Townships of Eastern Railways
• PERMANAR-F has been used to seal roof-top expansion joints at Club Town at Kaikhali on VIP Road at Kolkata
• PERMANAR-F has been used to seal the joint between the floor & wall of Primary Clarifier of the 18.16 MLD Capacity Sewage Treatment Plant at Chandannagar in 1994
• Different combinations of PERMANAR-F and PERMANAR-D are used to cater to various structural requirements
• Combinations of PERMANAR-F and PERMANAR-D are used to waterproof roofs with cement tile toppings and cracking lime terrace
• PERMANAR, mixed with water in volume ratio of 1:10, can be used as curing agent by pouring mix and liberally brushing on surface
• Reapplication following rain is generally not required

 

SHELF LIFE:

• PERMANAR has shelf life of 12 months in the Kolkata environment, when stored in a sealed container

 

WARRANTY:

Engineering Services International warrants that its product will be free from material defects and will be consistent with its traditional high quality. Should this product be proven defective, the liability of Engineering Services International shall be limited to replacement of the product. Engineering Services International makes no warranty as to merchantability or fitness for a particular purpose.

The use of PERMASOL helps in eliminating water leakage/seepage through roofs. Permasol, when applied on porous surface, penetrates into all micro cracks, pores and helps in sealing against further intrusion of water. PERMASOL is also a colourless, oil-based, translucent product of time-tested permakar technology for waterproofing, which has contributed extensively in many areas of engineering --- from weapon design to waterproofing, from nuclear power plant facilities to lower cost housing.

special features of permasol:

• excellent water resistance
• adaptability --- normal use of roof
• long life --- trouble-free service
• economical --- very low life cycle cost

application procedure:

• PERMASOL is to be applied on a dry and clean, porous but stable surface
• the waterproofing of concrete surface requires provision of a plaster prior to the application of permasol
• PERMASOL is applied directly after cleaning the surface
• for roofs in worn out condition or with damaged concrete/lime terrace, a cement-sand plaster is provided with a slope prior to the treatment with PERMASOL
• the treated roof can be put to normal use immediately after the treatment

 

coverage:

• a litre of permasol can be used to treat about 1. 85 square metres of a porous surface

 

approval:

• permasol has been selected by military engineer services (mes), government of india for the waterproofing of roof structures

 

caution:

• permasol, before or at the time of application, should be kept away from sources of fire

PERMASULPH acts as a sealing compound for expansion joints in buildings bridges and tunnels. It is a grey colour polymer compound for sealing cracks, structural gaps, bridges, tunnels, expansion joints in buildings as well as in other above or below-ground structures. It has excellent resistance to water and formed of base paste of polysulphide and a paste of an oxidizing curing agent.

 

PERMASULPH is a 2 compound, 2 pack product having base of a homogeneous paste of off-white colour and curing agent of a homogeneous paste of dark brown colour. In its two varieties, combination of the two leads to formation of flowing paste with self –levelling properties in low-viscosity grade and non-slumping, thixotropic paste in the gun grade.

 

application:

• it is important that surface is prepared for effective application of PERMASULPH
• all laitance, paint, loose & soft materials, grease, dirt and any other foreign material is removed from joints
• if need be, surface shall be mechanically treated to bare structural surfaces
• the surface is cleaned & permitted to dry completely
• finally, surface is etched with solvent-type primer PERMAPRIME and two components of PERMASULPH that are mixed thoroughly to obtain paste of uniform colour
• the sealing material is applied at the joint which will have been specially prepared for application of the polymer sealing material
• the sealant is applied connecting two faces of structures
• this will call for the provision of bond breakers in many cases
• the sealant, which sets in about a day’s time, is permitted to cure naturally for a week

 

typical uses:

• PERMASULPH, on setting & curing, turns into flexible, highly elastic, tough rubber-type sealant
• PERMASULPH allows for a ± 25% movement at the joint
• PERMASULPH can be used to seal joints in concrete structures, joints in glass curtains
• though sealant is applied only on a dry surface, PERMASULPH has excellent resistance to moisture and water
• PERMASULPH is thus ideal material for sealing not only roofs and above ground walls but also basements, roadways, runways, tunnels, bridges, etc

 

technical properties:

• PERMASULPH, with sp. Gr. Of 1. 6, has tensile strength as well as adhesion (peel off) strength of over 0. 40 n/mm
• though PERMASULPH has an elongation of 300% at failure, it permits elongation or contraction of 25%
• PERMASULPH has setting time of 24 hours and a curing (in air) time of one week
• under continuous exposure, PERMASULPH withstands (-) 50^o to (+) 80 ^o c
• PERMASULPH has shelf life of six months and a pot life of 2 to 3 hours (depending upon climatic conditions) at 25^o centigrade

 

warranty:

engineering services international warrants that its product will be free from material defects and will be consistent with its traditional high quality.

PERMACRYLIC-2 is a brilliant white to light coloured acrylic based coating material for surface protection of concrete as well as masonry structures against rain & other elements in nature. The milky white version of permacrylic is also used to seal fine cracks or to provide finish coatings. The primer PERMACRYLIC-1 & finishing material PERMACRYLIC-2 is specially formulated with 100% pure acrylic resins for superior scrub resistance, which is cross-linked with acrylate/styrene copolymer for improved elasticity. Besides resins, PERMACRYLIC-2 also has light fast pigment as well as other special additives to provide excellent protection against, uv degradation.

 

the acrylic-styrene permacrylic copolymer has extraordinary capability for elongation that has minimum elongation of 500 percent. Further, the standard formulations of PERMACRYLIC-1 & PERMACRYLIC-2 have elongations of over 100 percent. These properties also help in sealing pores & bridging fine cracks. Acrylic based coatings of PERMACRYLIC-1 or PERMACRYLIC-2 also feature superior stretch-ability and superior bond strength that makes them free from limitations faced by conventional coatings.

 

typical uses:

• the milky white liquid of permacrylic is used to seal fine & wide cracks on new as well as old roofs and other concrete structures (like concrete bridges)
• PERMACRYLIC-1 & PERMACRYLIC-2 coating materials can be used to provide surface protection to concrete & masonry bridges as well as on architectural renderings, walls against carbonation and ingress of moisture
• the ultraviolet ray-resistant white or light coloured PERMACRYLIC-2 when applied as coatings is used to waterproof walls & horizontal surfaces of buildings (other than roofs), superstructures of bridges, as well as other structures
• PERMACRYLIC-1 or PERMACRYLIC-2 is not used to waterproof water retaining structures

 

finish:

• PERMACRYLIC-1 and PERMACRYLIC-2 provide a smooth, matt finish with slight sheen

 

application:

• for application as a coating, PERMACRYLIC-1 and PERMACRYLIC-2 are thinned with water in volume ratio of 10:4
• except in cases of clear coatings, thinned PERMACRYLIC-1 and PERMACRYLIC-2 are applied by brushing/with a roller or by spraying on cleaned surface (preferably (but not necessarily) dry surface)
• though dry-to-touch time is about 30 minutes, a gap of 3-4 hours should be given between subsequent coats

 

coverage:

• the acrylic coating material PERMACRYLIC-2 has coverage of 5 sqm for 2 coats
• three coats, giving a dft of 240 micron, are recommended for long term protection of concrete bridges & horizontal surfaces of buildings

 

shelf life:

• PERMACRYLIC-1 & PERMACRYLIC-2 have shelf life of 12 months in kolkata environment, when stored in a sealed containers

 

warranty:

engineering services international warrants that its product will be free from material defects and will be consistent with its traditional high quality. Should this product be proven defective, the liability of engineering services international shall be limited to replacement of the product. Engineering services international makes no warranty as to merchantability or fitness for a particular purpose.

permacrylic-1 is an acrylic based primer that finds application for both interior & exterior use. Its specially designed formulation makes permacrylic-1 suitable for priming all kinds of exterior & interior surfaces. The material also has brush-able consistency. Further, if required, water can be used as thinner. Besides its easy brush-ability, permacrylic-1 is also endowed with properties of alkali & fungus resistance, quick drying, good sealing and excellent coverage.

 

technical data:

• area of application: concrete, plaster, brickwork, asbestos, etc.
• thinner: water (maximum 40%, i. E. , permacrylic: water = 10:4 or less)
• method of application: brush, spray or roller
• consistency: smooth
• specific gravity: 1. 4
• coverage: 10-14 square metres/litre/coat depending upon surface texture and finish
• number of coats: 1 or 2 as desired surface dry ⎯ less than 30 minutes
• drying time: hard dry ⎯ less than 3 hours
• finish: smooth, matt
• shade: white

 

applications:

• all loose materials is to be removed and surface thoroughly cleaned before application of permacrylic-1
• one/two coats shall be applied prior to application of finish coat or coats, preferably with prmacrylic or permacrylic-2
• the finish coat/coats shall be applied only after thorough drying of priming coat(s) of prmacrylic-1

 

shelf life:

• permacrylic-1 has shelf life of 12 months in kolkata environment, when stored in sealed container

 

warranty:

engineering services international warrants that its product will be free from material defects and will be consistent with its traditional high quality. Should this product be proven defective, the liability of engineering services international shall be limited to replacement of the product. Engineering services international makes no warranty as to merchantability or fitness for a particular purpose.

Permakar 4 offers ideal chemical treatment for arresting water leakages through water retaining structures. As part of permakar surface treatment, it is used to arrest water leakages through isolated points, construction joints & honeycomb areas. Permakar surface treatment also acts as total solution to every leakage problem in concrete as well as brick structures of:

• water
• basements
• machine pits
• reservoirs
• tunnels
• dams

 

permakar is state-of-the-art technology that is developed by dr anil k kar, an internationally renowned engineer who has contributed extensively to states-of-the-art in many areas of civil engineering. Water retaining structures & structures also subject to hydrostatic pressures that require protection against water leakages & seepages. Such structures also show slight to severe leakages depending on quality of concrete and water pressure. Permakar 4, when admixed with cement also makes cement quick-setting that helps in arresting running water leakages.

 

it stops water:

• permakar 4 is applied as judicious blend with cement or with cement and permakar 1 at predetermined proportions
• the treatment is provided after chipping out certain thickness of surface concrete around / along leakage areas at point leaks and along construction joints
• permakar 4, admixed with cement (preferably opc) stops running water leakages even in form of water jets
• the treated area is finally made bone dry by applying cementitious permakar 2 or permakar 3 treatment in form of a two-layer plaster

 

typical uses:

permakar 4 treatment, coupled with the permakar 1 and permakar 2 treatments, has been used to arrest profuse water leakages and to make bone dry the 30 metre deep machine room at the interim test range project at chandipore, orissa, of defence research and development organisation (drdo), the 20 metre deep intake well inside the barakar river bed for the augmentation of water supply from monberia to kulti, burnpur, west bengal, the 11 metre deep centrifugal casting machine pit, housing a large electric motor at the bottom of the pit for gontermann-peipers (india) limited at pailan, south 24 parganas (w. B. ).

 

superiority:

• cementitious permakar treatment outperforms cement injections
• it provides continuous shield against water leakage whereas cement injection, an isolated event and may arrest water leakages at isolated locations

 

warranty:

engineering services international warrants that its product will be free from material defects and will be consistent with its traditional high quality. Should this product be proven defective, the liability of engineering services international shall be limited to replacement of the product. Engineering services international makes no warranty as to merchantability or fitness for a particular purpose.

Offering complete solutions, permakar 1 works as a part of the permakar surface treatment and is used to arrest running water leakages through isolated points, construction joints as well as honeycomb areas. The surface treatment also offers total solution to every leakage problem in concrete as well as brick structures of water, basements, machine pits, reservoirs, tunnels, dams and others.

Benefits:

• Permakar is state-of-the-art technology, developed by dr anil k kar, an internationally renowned engineer, who has extensively contributed to states-of-the-art in many areas of civil engineering.
• Water reservoirs as well as structures below ground or structures that are subjected to hydrostatic pressure
• Depending on quality of concrete and water pressure, these structures show slight to severe leakages, where permakar 1 helps arrest such running water leakages
• Permakar 1 is used as admixture with cement paste or with paste of cement and waterproofing compound
• Permakar 4 is used to make quick-setting cementitious compound
• Permakar 1, mixed with water in volume ratio of 1:10, can be used as curing agent by pouring mix & liberally brushing on the surface (following any rain, it requires to be reapplied)

 

It stops water:

• Permakar 1 is applied as judicious blend with cement or with cement
• It is admixed with permakar 4 at predetermined proportions
• Ihe treatment is provided after chipping out certain thickness of surface concrete around/along leakage areas as at point leaks & along construction joints
• Permakar 1 stops running water leakages even in form of water jets
• the treated area is finally made bone dry by applying cementitious permakar 2 or permakar 3 treatment in form of two-layer plaster

 

Typical uses –

Permakar 1 treatment, coupled with permakar 2 treatment is used to arrest profuse water leakages & to make bone dry the 30 metre deep machine room at interim test range project at chandipore, orissa, of defence research and development organisation (drdo), the 11 metre deep centrifugal casting machine pit, the 20 metre deep intake well inside the barakar river bed for the augmentation of water supply from monberia to kulti, burnpur, west bengal, housing large electric motor at the bottom of the pit for gontermann-peipers (india) limited at pailan, south 24 parganas (w. B. ).

Superiority:

Cementitious permakar treatment also outperforms cement injections and provides a continuous shield against water leakage whereas cement injection, an isolated event helps in arresting water leakages at isolated locations.

Warranty:

Engineering services international warrants that its product will be free from material defects and will be consistent with its traditional high quality. Should this product be proven defective, the liability of engineering services international shall be limited to replacement of the product. Engineering services international makes no warranty as to merchantability or fitness for a particular purpose.

PERMACONE is a fast curing silicone-based sealant that has excellent properties of adhesion to metal and finds applications in building materials like glass, timber, aluminium, brick, steel, concrete, etc. It is also characterized by flexibility of over five hundred percent, thus making it also useful in sealing joints in:

• windows & door frames
• roofing & guttering systems
• wall & cladding panels
• construction joints in concrete structures
• expansion joints

 

in sealing expansion joints, preparatory treatments are done prior to application of PERMACONE. It can also be made transparent or given any colour to make it aesthetically soothing.

 

application process:

• PERMACONE, in plastic tubes is loaded into metallic caulking guns, specially fabricated for purpose of such application
• a plastic nozzle, of variable sizes, is fitted on outlet of the tubes
• the tube is placed at desired location and material, squeezed out through nozzle is allowed to stick to application areas
• PERMACONE is then naturally cured

 

safeguards:

• PERMACONE can be applied only on dry surfaces

 

prior to application of PERMACONE, following steps are involved in making the surface ready for the permacone treatment:

• cleaning surface of loose dirt, laitance, any foreign matter, etc. And making surface completely dry
• in cases of expansion joints, preparatory treatment at joint, which involve combination of waterproofing treatments under permakar technology prior to sealing by permacone coverage
• the coverage depends upon width & depth of joints to be sealed
• in expansion joints thickness of seal is kept at fifty percent of the width