Maxjoint Elastic – sealing joints in cracked concrete


Drizoro Maxjoint Elastic  Pails

Video Technical Data Sheet | MSDS part a | MSDS part b

An elastomeric product with high bond strength suitable for sealing moving cracks and joints in concrete, mortars, blocks and bricks.
Comes in Ivory | Blue | Burgundy 
Must only be applied to WET surfaces.

Small Pack 2 KG will fill 10 x 5 mm =   30 lin/mtr
Medium Pack 10 KG fills 10 x 5 mm = 150 lin/mtr


Maxjoint Elastic Mortar For Sealing Joints in Cracked Concrete Subject To Movement, Prefabricated And Ceramic Elements

Video | Appl Video | Technical Data Sheet | MSDS part a | MSDS part b

For Sealing joints in cracked concrete.

Maxjoint-elastic-expansion-joint-hydrostatic-pressure, Seals moving Joints cracks in concrete

Seals moving Joints cracks in concrete

Drizoro Maxjoint Elastic – Superior Elastic Mortar Joint Waterproofing Sealant 

Seals moving Joints cracks in concrete, Maxjoint Elastic - expansion-joints- mobile or flexing crack sealer, sealing joints in cracked concrete

Maxjoint Elastic - expansion-joints- mobile or flexing crack sealer, sealing joints in cracked concrete

MAXJOINT® ELASTIC  is a two-component product for sealing joints in cracked concrete.

Component A is a liquid based on special synthetic resins. Component B, supplied in powder form, is a mortar based on a mixture of cements, additives and special aggregates. Mix both components to produce a high bond strength, elastomeric material.
Suitable for sealing joints and cracks in concrete, precast elements, mortars and bricks.


expansion-joints-moving-cracks-in-concrete-masonry, expansion joints, sealing joints in cracked concrete

Seal Tilt Panels

  • Sealing expansion joints with an in-service joint movement of up to 15%.
  • Joints in permanent immersion in pipelines, water reservoirs, water treatment plants, etc.
  • Sealant of joints for concrete prefabricated elements and ceramic in facades and building construction
  • Sealing of active cracks in concrete and masonry.
  • Pointing mortar on substrates subject to movement.

Advantages and Benefits 

  1. Allows movement capability of joint up to 15%.
  2. Excellent adhesion on damp surfaces. Must be damp
  3. Very high weather resistance and durability.
  4. No maintenance is required.
  5. NO Bonding Agent required!
  6. Non-slump on vertical joints.
  7. Suitable for joints in permanent contact with water
  8. Non-toxic and non-flammable, environmentally friendly.
  9. Easy to apply and finish. Paint, once cured, with the desired colour

Application Instructions

For sealing joints in cracked concrete the Joint Size:Joint width must not be greater than 30 mm. Sealing depth should be at least half of joint width.

Use polyethylene foam joint backing rod MAXCEL (Technical Bulletin no 48), with a diameter 25 % greater than the joint width, in order to avoid the stress of the bottom on MAXJOINT® ELASTIC.

Substrate Preparation
The surface to be sealed must be solid and clean, free of all traces of paint, efflorescence, loose particles, grease, form stripping oils, dust, gypsum plaster, etc. Before applying MAXJOINT® ELASTIC, dampen the joint edge removing free-standing water.

Mix preparation
MAXJOINT® ELASTIC is supplied as two pre-weighed components. Pour the resin, component A, into a clean container and add the powder gradually, component B, while mixing. Use a low-speed mixing drill (400 600 rpm).  Mix to achieve a lump free homogenous mixture. Avoid an excessive mixing time and do not modify the proportions supplied between both components. Leave the mix to rest for 2 minutes.

Depending on relative humidity and temperature, pot life can vary between 30 - 60 minutes approximately. After this time, re mix to keep its workability but do not add water.

Seals moving Joints cracks in concrete, masonry joint sealant, stops hydrostatic pressure, sealing joints in cracked concrete

Drizoro Maxjoint Elastic Seals Seals moving Joints cracks in concrete


To improve the adhesion on the surface, a primer of component A applied by brush on the joint edge can be recommended. While the primer coat is still wet to touch, apply MAXJOINT® ELASTIC into the joint with a trowel, caulking gun or putty knife.

During the application, push against the bottom and edge joint in order to avoid any remaining internal air bubbles. Smooth the surface with soapy water immediately after application as required.

Application Conditions: -

  • Do not apply MAXJOINT® ELASTIC below 5ºC or if lower temperatures are forecast within 24 h after application.
  • NO applications onto frozen or frosted surfaces.
  • Prevent fast drying during the first hours of curing.
  • Protect against strong wind or direct sunlight at high temperatures.
  • Do not apply if rain is expected within 6 - 8 hours after application.

Curing time varies depending on temperature and relative humidity, as well as on the joint size.

At 20ºC and 50 % R. H, a 10 mm width application of MAXJOINT® ELASTIC can be coated by MAXSEAL® FLEX (Technical Bulletin #29), MAXELASTIC® (Technical Bulletin #8)  after a curing time of 7 days.

When subject to water immersion, allow a curing time of 3 weeks, in such weather conditions.

Note Applications requiring longer curing time are

  • where expected temperatures are below 10ºC,
  • high relative humidity
  • non-ventilated areas,

Clean tools with water immediately after application. Removal, once cured, is by mechanical methods.

Seals moving Joints cracks in concrete, Drizoro MAXJOINT Elastic expansion joint sealant, sealing joints in cracked concrete



MAXJOINT® ELASTIC is supplied in 10 kg pre-weighed sets (5 kg liquid component A and 5 kg powder component B). It is available in grey colour.


Twenty four (24) months in its original unopened sets, in a dry covered place, protected from frost, above 5ºC.


Fills approximately 0.790 litres with 1 kg product. The following data is an approximate guideline depending on the joint size:


sealing joints cracked concrete Mortar Based Sealant, Sealing Joints Consumption

 Consumption of Maxjoint Elastic

Important Instructions DO NOT ADD/Apply-

  1. cement, water or aggregates to MAXJOINT®ELASTIC to achieve higher coverage.
  2. MAXJOINT®ELASTIC below 5ºC or
  3. lower temperatures are expected. Within the following 24 hours after application.
  4. Do not apply to frozen and frosted surfaces.
  5. For further information, please consult our Technical Department.Maxjoint Elastic Cementitious Mortar Based joint Sealant, Seals moving Joints cracks in concrete, Concrete Crack Repair

Technical Data

Maxjoint Elastic Mortar Based Sealant for Seals moving Joints cracks in concrete, expansion joints



Health and Safety:

Two Components:- Component A: neither toxic nor flammable. It is not classified as dangerous material for transportation.

Component B:  Cement-based products are abrasive. Wear protective rubber gloves and safety goggles to prepare the mix and apply. If any of the components or mixture gets in contact with eyes or skin, rinse with clean water, but do not rub. If irritation continues, consult a doctor.

There is a MAXJOINT®ELASTIC Safety Data Sheet available by request. Disposal of product and empty containers must be as per official regulations. The proper disposal of the product is the responsibility of the user.



  • Drizoro Maxjoint Elastic is recommended for sealing joints in cracked concrete. Best for your application as all the surface has to be damp to apply it!


Sure is sad to see a joint sealant like the one in the above pictures fail so completely. The pictures were taken poolside on the Gold Coast. Showing severe delamination and splitting. The is many possible causes for the failure.

  1. Wrong product selection - not suitable for conditions
  2. impossibility of keeping substrate during preparation
  3. not primed properly
  4. no bond breaker
  5. poor application technique - not following manufacturers instructions

Drizoro Maxjoint Elastic - waterproof elastic mortar - Seals Moving Joints, cracks in concrete

Watch Maxjoint Elastic application below

Recommended Reading.

  1. Repair concrete cracks
  2. How to waterproof a new pool with Drizoro waterproofing materials

Concrete Crack Repair – flexing expansion joints

How to Seal expansion joint subject to hydrostatic pressure


The information contained in this leaflet is based on our experience and technical knowledge, obtained through laboratory testing and from the bibliographic material. DRIZORO ®reserves the right to introduce changes without prior notice.

Any use of this data beyond the purposes (sealing joints in cracked concrete) expressly specified in the leaflet will not be the Company’s responsibility unless authorised by us. The data shown on consumption, measurement and yields are for guidance only and based on our experience. Test usage on the job site to establish correct usage data.

Usage subject to atmospheric and job site conditions. Onsite testing to confirm usage data. This a client's responsibility. We shall not accept responsibility for exceeding the value of the purchased product. For any other doubt, consult our Technical Department. This version of the bulletin replaces the previous one.

Additional information

Weight 2 kg

10 Kg, 2 Kg


Ivory, Blue, Grey, Burgundy