Application of the Skudo Commercial System consists of two steps. First the Base Coat is squeegeed and/or rolled onto a small section of the surface to at least 250 micron wet. Then the HT or MT Mat is immediately rolled over the wet Base Coat and pressed in.
*IMPORTANT NOTE FOR APPLICATION ON CONCRETE: If Concrete is only partially covered with Skudo and the remainder is left unprotected for the duration of construction, this can cause color variance between the protected vs. the unprotected. This comes from exposure to the sun & the elements and differences in evaporation (see images below).
- Ensure Skudo is suitable for the substrate on which it will be applied.
- Always spot test Skudo to specific job site conditions.
- Do not apply the system externally if rain is likely within 6 hours.
- Ensure all densifiers, grouts, sealers, guards, epoxies etc. have been cured to their manufacturer specifications (touch dry is not sufficient).
- Only apply Skudo only when the surface temperature is above 4°C and below 40°C.
- Ensure good ventilation.
- Protect the area of any traffic for at least 3 hours to allow Skudo to fully dry (HT Mat System will take longer to dry, but will be able to handle foot traffic after 3 hours and machine traffic the next day).
- Ensure the area is clean and free from any prior coatings and any foreign materials that will contaminate or compromise the Base Coat.
- Ensure the surface pH is below 11.0 (do a pH check).
- Skudo requires that all concrete slabs be below 80% relative humidity before installation of the Skudo systems, this may require a test to be conducted on-site (wait 14+ days after placing concrete).
- Once you have the correct materials and you are using the system according to its specification boundaries, you are ready to start application.
- Do not allow slab to flood or be saturated before base coat has dried.
For further details, please see the Skudo Product Manual.
The time taken to apply the Skudo Commercial System will depend upon a number of factors, including surface type, space available, application method and the crew experience. Below are some application times from previous jobs by several contractors:
- Notched Squeegee: 9305 sqm – 1115 sqm / day – 3 man crew
- Gauged Roller: 325 sqm – 465 sqm / day – 2 man crew
Click HERE to see a comparative chart of the above application methods.
Base Coat Spread Rates
It is critical that the Skudo Base Coat be applied consistently to a minimum thickness of 250 micron wet.
The spread rates of the Base Coat will vary due to weather, how porous the substrate is on which it will be applied, and the application method (notched squeegee or roller).
On flat sealed continuous substrates, the Base Coat will yield approximately 15 sqm per 3.8 litres.
On raw concrete or textured substrates with a lot of undulations or grout lines the yield can drop to 11 sqm – 15 sqm.
As noted above, in colder climates warming the base coat in the sun or near a heater can yield better spread rates. When it is very hot, the applicator will need to be quick about laying the Mat on top of the Base Coat before it dries.
Due to unknowns and variables, Skudo can only recommend these figures as guidelines and it is recommended you undertake your own application rates to ensure adequate quantities are obtained to complete the job.
Base Coat Application Techniques
Skudo Commercial System is comprised of two products. (1) The liquid component is a one part – water-based liquid “Base Coat”, this is used in combination with (2) the pre-manufactured “HT or MT Commercial Mat” developed by Skudo. There are two main methods to apply the Skudo Base Coat:
- Notched Squeegee Method: Applied with a notched squeegee and paint roller (for “Back roll”) – **This is the method recommended by Skudo to achieve the most accurate application results.
- Gauged Roller Method: Applied manually with a paint roller outfitted with mil gauges.
Click HERE to view a comparative chart of all of the above application methods.
- Notched Squeegee and Back Roll Method: Skudo Notched Squeegee Kit, 450mm Skudo Roller Kit – (2 – one for back rolling, one for pressing Mat down) and paint trays
- Gauged Roller Method: Skudo 225mm Gauged Roller Kit and 450mm Roller Kit and paint trays, Skudo Bucket Dolly (for the base coat pail)
If using a Paint Roller:
- Recommended nap cover of 5-10mm
- 225mm size will fit into the Base Coat bucket; an 450mm size is faster but requires the use of a paint tray.
Before applying the Skudo Commercial System of your choice, be sure you have:
- Checked the shelf life of the Base Coat to ensure product is suitable to use.
- Reviewed the Product information for Job Assessment and Substrate Suitability.
- You have followed the Preparation information and acquired the necessary Tools and Equipment, as noted on the previous sections on this page.
- You have viewed the Application Video for a visual and verbal overview of the application process.
Click on each step below for a full explanation and visual.
Step 1: Position and Roll Out Mat
Start with the Skudo Mat in a corner of the area to be covered. Roll the Mat out 92 to 122 cm and align with a wall or edge of slab to ensure a straight roll out.
Step 2: Lift Up Rolled Out Section & Apply Base Coat
Lift up the rolled out section away from the section’s edge, begin applying the Base Coat directly onto the surface in a consistent coat with a thickness of 0.254 mm wet.
Apply it to the surface across the entire width of the Skudo Mat roll.
Note: Rough or textured surfaces will require a thicker application of Base Coat to ensure that there is complete covered.
- Warm the Base Coat to ensure optimal spread rate – in warmer climates place the bucket in direct sunlight, in cooler climates place it near a heater. Give them a gentle mix, but do not agitate excessively.
- If applying Skudo with a roller, dampen it with water first (shake off excess) – this will help the Base Coat soak into the roller more quickly.
- For the initial section, you may have to dip the roller into Base Coat several times to properly soak it.
- Over tile grooves and rougher or more textured substrates, you will need to apply more Base Coat to ensure that the complete profile of the surface is covered with adequate thickness to soak into the back of the Mat.
- For the edges around the slab or edges exposed to traffic, apply the Base Coat a little thicker to ensure that you have a maximum bond on these areas.
- When using a spray gun to apply the Base Coat, ensure the application thickness is adequate.
- If you are applying with an airless sprayer, a 51 cm extension tip can be helpful.
- Due to the Base Coat’s consistency, as much as 0.95 of a litre could to cling to the sides and the bottom of the pail and dry out. To avoid this, use a strip of cardboard to push off the Base Coat from the insides and bottom of the pail while it is still wet.
Step 3: Lay Mat and Press In
Lay the rolled out section of Skudo Mat back onto the wet Base Coat and press it in immediately, using either the Skudo Roller or a dry paint roller.
It is critical that the Skudo Mat is uniformly pressed into the Base Coat.
This now becomes the anchor for the rest of the roll.
Step 4: Continue Process
Continue to apply the Base Coat again in front of the roll.
When using the Skudo Notched Squeegee, ensure to pull the product away from the roll before back rolling.
Press in the Skudo Mat as you go, repeat process until the end of the row. Once applied, do not lift the Mat. Taking note to ensure Base Coat thickness is 0.254 mm wet.
- Do not apply the Base Coat too far ahead of the Mat roll as it could dry out and weaken the bond with the back of the Mat. If it does dry, re-roll the Base Coat, then re-press the Mat back in while still wet.
- Once the Mat has covered the Base Coat, do not pull it up as the bond with Mat can be weakened.
Step 5: Begin the Next Section
Start the next row with the Skudo Mat as per Step 1, overlapping the edge up to the guide line. Roll out 92 to 122 cm of the Mat for alignment.
This will ensure that the next section will be straight and will not drift off this line further down the area of application.
The Base Coat can be used to adhere the overlap.
This makes the system more water tight which is important for projects that have not been dried in yet.
Repair and Maintenance
Should the Skudo Mats require patching, lift up the tear, apply fresh Base Coat underneath and press the Mat back down. Alternatively, you may apply a new section of the Skudo Mat with Base Coat over the hole.
Proper run-off is recommended, otherwise mopping up excess water is required in order for the coating integrity not to become compromised.
Also avoid constant use of heavy machinery, harsh chemicals, excessive welding slag or sparks in a concentrated area, and dropping heavy materials from height.
When ready to remove the Skudo Mat, work with a partner and simply lift a corner and peel it back at a 45 degree angle. To make the process easier and faster, nip the edge at 600mm – 900mm widths and tear it into thinner strips. Dispose of the Mat in local refuse facilities.
Note – do not remove the Mat when the temperature is below 4°C.
Removal time will vary depending on the texture of the surface to which it was applied.
RECOMMENDED: Use the Skudo Mat Puller to give more leverage and make the removal process easier.