MAXSEAL®
WATERPROOF COATING FOR CONCRETE, MASONRY BLOCKS, PREFABRICATED PANELS AND BRICK

Description

MAXSEAL is a mixture of cements and special additives, which together with carefully controlled aggregates, gives the coating its waterproofing properties. It is suitable for use on the following surfaces: concrete, brick, cement, mortar and masonry

Uses

- As a waterproof coating for exterior walls.
- Basements subjected to water pressure.
- On foundations, to waterproof and protect concrete from water damage.
- As a waterproof coating for concrete blocks and prefabricated panels.
- As a decorative, waterproof finish for silos and cooling towers in thermal plants.
- Repairing and waterproofing irrigation channels.
- As a coating to waterproof dams and retaining walls.
- To protect and waterproof concrete in water treatment plants.
- Waterproofing tunnels and shafts.
- Waterproofing swimming pools.
- Waterproofing and coating fresh water tanks.

Advantages

- The coating allows the base to transpire and thereby eliminates water vapour.
- A final coat MAXSEAL may be applied for optimal waterproofing or in lieu of a decorative finish.
- It is an authentic waterproof coating for exterior surfaces subjected to the elements.
- For indoor applications, especially basements, the coating resists hydrostatic pressure from groundwater.
- It is easy to use and maintenance cost is practically non existent.
- Resists the corrosive effects of salt water and atmospheric pollution.
- Longer lasting than paints and other coatings.
- It forms a structurally inseparable unit with the base as it fills and seals all pores.
- It has no toxic effect on drinking water.
- Once it sets, can be painted over. It can also be covered with ceramic tiles as in swimming pools or decorative outdoor murals.

Surface preparation

The surface to be coated must be solid and clean, free of all traces of paint, efflorescence, loose particles, grease, form-stripping oils, dust, gypsum plaster, etc.
If the surface has previously been painted with whitewash, paint or other such treatment, remove at least 80% of them.

All cracks must be at least 1,5 centimetres deep and must be sealed with MAXREST if there is no water or with MAXPLUG if there is water penetration. All non-structural surface iron must be cut to a depth of 2 centimetres then patched with MAXREST or MAXPLUG.
Wash the surface with water before coating.
Do not apply the coating on a gypsum plaster base.

Tools
MAXSEAL is applied with a fibre type brush, or a shorthaired nylon fibre brush, which makes it easier for the coating to fill all pores and cavities. With a MAXBRUSH apply a thick layer to form a continuous and uniform coating; do not spread as if it were paint, apply only in one direction, the second coat should be spread in the opposite direction. After the work is finished, clean the brushes with water and store for further use.

How to mix maxseal
In a large container mix one part MAXCRYL to three parts water, and use this liquid for the MAXSEAL mix.
Place the liquid into a container and add MAXSEAL until you get a thick creamy paste. Let the mix rest for five to ten minutes. If a low-speed drill is used, mix the material for about one minute.
A 25 Kg. bag or pail of MAXSEAL requires about 6.25 - 7 litres of liquid MAXCRYL-water or only water when both, surface condition and temperature are ideal for MAXSEAL application (surfaces which are not very smooth and temperature between 15 and 20ºC).

Application temperature
For summer temperatures, wet the surface with plenty of water and use MAXCRYL in the MAXSEAL. You may water the surface even after MAXSEAL has been applied if you notice hat the drying process is too fast.
In winter, do not apply when temperature is below 5ºC or if such temperatures are expected within 24 hours of application.
Do not apply on frozen or frosted surfaces.
The ideal working temperature is 15º-20ºC.
Do not apply on outdoor surfaces if rain is expected within four to six hours of application.

Colours

MAXSEAL comes in standard grey, white, pearl grey and other pastel colours manufactured, MAXSEAL DECOR, on request. The RAL and NCS colours indicated below are indicative.

White | RAL 9003
Grey | Similar to RAL 7030
Pearl Grey | RAL 7044
Ivory | RAL 9001
Blue | Lighter than RAL 5024 or NCS S 0530-B
Light Blue | Very much lighter than RAL 5024 or NCS 0505-B
Terracotta | NCS S1010-Y40R
Green | Lighter than RAL 6019 or NCS S1010-G10Y
Light Green | Very much lighter than RAL 6019 or NCS S0520-Y90R
Pink | Very much lighter than RAL 3015 or NCS S0520-90R
Salmon | NCS S0520-Y60R
Cream | NCS S0510-Y10R

Packaging

25 Kilogram bags, 25 kilogram drums, and 5 kilogram cans.

Storage

Bags, in a dry place one year, in drums for 18 to months.

Caution

As all cement products, MAXSEAL is abrasive and protective rubber gloves must be used to prepare the mixture and apply it. If any of the mixture gets into the eyes, rinse thoroughly with clean water, but do not rub. If irritation continues, consult a doctor.

Application requirements

Type of Application | Kg/m2 1st layer | Kg/m2 2nd layer | Kg/m2 Total | Procedure
1st layer | 2nd layer
Brush | Roller | Brush
Exterior wall, partition walls | 1.3 | 0.7 | 2 |  |  |
Exposed concrete | 1 | 0,5 | 1,5 |  |  |
Brick: Double hollow for later Mortar coating | 1.5 1.8 | - 1 | 1.5 2.8 |  |  |
Swimming pools | 1.5 | 1 | 2.5 |  |  |
Basements: Damp With water pressure | 1,5 2 | 1 1 | 2,5 3 |  |  |
Tunnels and shafts | 2 | 1 | 3 |  |  |
Sewers | 1,5 | 1 | 2,5 |  |  |
Water treatment plants | 1,5 | 1 | 2,5 |  |  |
Drinking water tanks | 1,5 | 1 | 2,5 |  |  |
Irrigation canals | 1,5 | 1 | 2,5 |  |  |

The above requirements are based on normal conditions. Consult your supplier for extreme problems.

Technical data

Permeability to water under pressure negative conditions.
After 180 mins. from 3,5 Kp/cm2 pressure was applied, there was no passage of water through
MAXSEAL - lined surface. Test was interrupted by breaking of test-pieces.
Test No. 14.943 I.E.T.C.C. (1)

Toxicity.
MAXSEAL is suitable as internal lining from drinking water tanks. It is not toxic.
Test No 14.343 I.E.T.C.C. and Analysis No 44.643,from National Food and Nutrition Centre.
Ministry of Health and Consumer.
Test No 5.211-5.212 Lebensmittel-Versuchsanstalt, Viena (Austria).

Permeability to rain-water.
A water flow, 120 l/m2 X h, with wind, is applied on the surface of MAXSEAL - lined wall. After 4 hours of testing, no water or dampness is seen to seep trough the wall.
Test No 1.031/82-M INCE (2).

Permeability to steam.
MAXSEAL allows the substrate on which it is applied to breathe.
Test No 15.816 I.E.T.C.C.

Accelerated ageing. Freeze-thaw and heat-ice cycles.
After 1000 hours of testing, there was no deterioration, loss of adhesion, cracking or colour changes.
Test No 15.269 I.E.T.C.C.

Adhesion.
Perpendicular traction pull off test: 24,7 Kp/cm2
Test No. 200115825VA. SAIN C.V.O.-S.A. Laboratory.

Mechanical Resistances.

AGE | Kp/cm2 (psi)
FLEXURAL STRENGTH | COMPRESSION STRENGTH
3 days | 54 (767) | 210 (2985)
7 days | 73 (1038) | 344 (4890)
28 days | 104 (1478) | 429 (6100)

Test No 15.269 I.E.T.C.C.
(1) I.E.T.C.C.: Eduardo Torroja Institute for the Construction and Cement. Member of European Union for Construction Technical
Agreement.
(2) I.N.C.E.: National Institute for Quality in Construction.

Guarantee

The information contained in this leaflet is based on our experience and technical knowledge, obtained through laboratory testing and from bibliographic material. DRIZORO reserves the right to introduce changes without prior notice. Any use of this data beyond the purposes expressly specified in the leaflet will not be the Company’s responsibility unless authorised by us. We shall not accept responsibility exceeding the value of the purchased product.

© 2003 DRIZORO S.A. All rights reserved.