Lumin Sdn Bhd

LUMIN PTC#7 A Deep Penetrating Sealant

Lumin PTC #7 originated in Nevada, USA, in 1975. The initial design concept of

the inventor (Dr.A.W. (Bill) Smith), was as a concrete protection product. It was

designed to protect concrete from airborne chemicals (salts) used in the deicing

procedures in the Northern United States.

Subsequently, its performance as a waterproofing product, and a concrete

hardener, as well as its ability to protect concrete from airborne pollutants and

chemicals harmful to the long life of concrete, has made Lumin PTC #7 unique

in its price/performance when compared with traditional alternatives.

Its ease of use in many and varied applications has made it economical in its

initial application, and when used as part of a systems approach, detailed later,

it becomes easy to maintain in an open system environment.

Lumin PTC #7 is a colourless, odourless, non-toxic, non-caustic, non-flammable

deep penetrating concrete treatment.

Its technology is such that it replaces, and outperforms many of the existing

sealers, membranes and coatings in most applications.

Lumin  PTC#7's Main Features

1. Penetrates normal concrete by more than 20mm.

2. Will seal thermal stress cracks up to 3mm.

3. Hardens the penetrated concrete from 6 to 8 on the MOH scale of

    hardness.

4. Protect concrete from deterioration by chlorides and airbone pollutants.

5. No change to the features of the concrete, i.e. slip resistance and

    aesthetics.

6. Inhibits the ingress of oils, greases and light acids.

7. Is user and enviromental friendly.

8. Has a life expectancy similar to concrete.

How It Works

While there are many sealants available in the market, some of which sound

similar, there is a history to Lumin PTC #7 which has proven the claims made

for this product to have substance in the long term. The design concept of the

product has given Lumin PTC #7 a multiplicity of applications. Where, with

other systems, a number of products have to be used to achieve an objective

,Lumin PTC #7 can achieve most objectives with one application. As well as

penetrating deeply into the concrete, it sets up a long term pore blocking action

which creates its own hydrophobic barrier to water penetration. At the same time,

it bonds with the particles of the penetrated concrete causing the penetrated

area to harden. With the pore blocking action, it densifies  the concrete without

affecting the strong characteristics of the original concrete design.

No visible change takes place to the surface. Therefore, the application of

aesthetic finishes such as tiles, paints or screeds are not affected.

Cost Effectiveness

Lumin PTC #7 application cost are well below those of reasonable quantity

membranes and has the added advantage that no protective screed is required.

This creates quite interesting price differences, resulting in cost savings in the

structure.

This different approach has enabled small design changes in certain structures

which also contribute, substantially, to the overall cost savings.

Application Method

Lumin PTC #7 can be applied with a brush, roller or preferably using the spray

method at a rate of 5M² per litre, to a slightly damp surface. It is normally applied

to the hydrostatic side and the concrete should be at lease 28 days old to

achieve optimum penetration.

After application, it should be allowed to dry for at least 2-4 hours, and is then

watered thoroughly. It should be watered twice more over the next 48 hours.

All glass, aluminium and wood stained areas should be protected during the

spraying and watering procedures. Application should be avoided during high

wind conditions.

The best results are achieved when used on reinforced concrete. Application to

other materials should be discussed prior to proceeding.

All oils, greases, paints or failed membranes and coating should be completely

removed prior to application. Lumin PTC #7 should not be applied in

temperatures lower than 5ºC or higher than 45ºC. In fact, it should not

be applied if there is a likelihood that because of the concrete’s temperature, the

product may evaporate before it penetrates.

The only site interference is during the application and the first watering period.

After this, the surface is available to human or vehicular traffic.

Although Lumin PTC #7 has a wide range of uses, each structure has its own

unique problems which will require the use of ancillary products to achieve the

total results required. Areas such as cold joints, expansion joints and shrinkage

cracks at the slab/parapet interface are examples where a system approach

would be required.

The application of Lumin PTC #7 is limited to Approved Applicators and no

guarantees will be issued unless done by current Approved Applicators.

On normal concrete, Lumin PTC #7 should be successful within a seventy two

hour period. However, some materials such as screeds, plaster, low quality

concrete or concrete blocks may take a little longer perform due to the size of

the voids within the material.