Discuss inpatient customer in the Tiling Forum at TilersForums; just been to look at a job, the customer has a black slate kitchen floor, and he now wants to carry the slate in to a porch area 9.5 2m, ...
just been to look at a job, the customer has a black slate kitchen floor, and he now wants to carry the slate in to a porch area 9.5 2m, the floor needs to be raised 30mm, he has someone putting a screed down of 30mm and wants us to lay the slate two days after, i told him there is no way it would be ready and it needs 30 days, he said he would use heaters to make it cure faster, i told him if he wanted us to lay them,
1. The work is not garanteed
2. No comebacks on us as he was warned prior
3. we would not come back for any repair work
would anyone of done things diffrent, or passed on the job, as i am considering not doing it at all.... cheers
The screed needs to be made using a quick set render like Mapei stuff (topcem Pronto) or Ardex equivalent to tile within 2 days. If they are not going to listen, I would pass on the job!
why not use that new slc with nylon fibres in? mapei and weber both do one, we use it all the time to quickly build up a floor. We then put a fine skim of a finer grade slc on top to ensure the floor is perfectly flat and smooth.
His heaters will not do anything to speed the cure. You need to create a sealed environment, increase the ambient temperature and use blowers to de-laminate the moisture in the screed and absorb that extra moisture in the air with a good dehumidifier. That way it will cure without cracking and be ready within 72 hours - if done correctly.
Personally I'd go with the slc; easier and cheaper and earn that bit more out of the job.
3 inch screed is ok if done properly...... you can tile this if you use an adhesive suitable for green screeds.....or a vapour equalisation membrane stuck down with a slow setting S1 grade adhesive....
And then tile on that with an adhesive suitable for the tile type....
Stonefix XP 250 is a free flowing, self smoothing, protein free, floor levelling compound, blended from a mixture of high quality, fibre reinforced, raw materials.
Revolutionary Product For Levelling Up To 50mm in a Single Pour onto Concrete, Timber, Bitchamen, Chipboard, DPC, Tanking, Insulation Boards, and Underfloor Heating Systems. Also use Stonefix XP250 for creating a fall, or a slope.
One Bag of Stonefix XP250 Levelling Compound Will Cover:
(recommended thickness over electric underfloor heating - 4 mm)
3.7 Square Metres at 4 mm
1.8 Sqaure Metres at 8 mm
1.0 Square Metres at 15 mm
0.59 Square Metres at 25 mm
0.42 Square Metres at 35 mm
0.29 Square Metres at 50 mm (maximum depth for one pour)
OR Use The XP250 Calulator.
Take the height in millimeters you wish to come up and multiply this number by 1.7, then divide by 25 and multply this number by the area in square metres you wish to level, the number you will be left with will be the required amount of StoneFix XP250 to cover this area.
For Example: 5mm mulitplied by 1.7 divided by 25 mulitplied by 48 sq / m = 16.32 (17 No. - 25kg bags of StoneFix XP250)
Characteristics
Builds up between 2-50mm in one pour
Pours directly over underfloor heating
Suitable for nearly all primed substrates including timber floors (chipboard, plywood, floorboards),
ceramic tiles, concrete and painted surfaces
Highly flexible and fibre reinforced
Sets in 3-4 hours
Protein free
Suitable for manual or mechanical (pump) application
Guaranteed for the life of the sub-base
Uses
StoneFix XP250 Self Levelling Compound can be applied in thicknesses from 2mm to 50mm in a single pour. It provides an economic means of levelling and renovating existing floors, prior to the installation of floor coverings such as ceramic tiles, natural stone, timber or carpet. it is particularly effective for encasing underfloor heating systems where its thermal transfer properties enhance the heating application.
StoneFix XP250 Self Levelling Compound is suitable for use in homes, schools, office buildings, public building, sports halls, department stores and hospitals.
Application
For small areas StoneFix Levelling Compound should be mixed using a slow speed mixing drill and whisk attachment, and poured by hand. For larger areas the use of a mixer pump is recommended.
Substrate Preparation
Substrates must be hard, sound and free from dust, oil, grease, paint, plaster, laitance or any other contaminant that could prove a barrier to adhesion. Heavily contaminated floors may require special treatment and specific advice should be sought. Generally substrates are best prepared by mechanical methods such as shot blasting, planing or scabbling. The substrate must be vacuum cleaned prior to application of primer. the substrate must not leach moisture. Anhydrite screeds must not have more
than 0.5% residual moisture before being covered. Recently laid cement/sand renders and screeds must be left for two weeks and three weeks respectively before covering. indoor air and floor slab temperature must exceed +6 oC with relative humidity not exceeding 95%.
Priming
Substrates must be primed with Stonefix Acrylic Primer. Particularly porous or absorbent substrates may require a second coat. Neither priming nor floor laying should be attempted if the indoor air or floor
slab temperature is less than +6 oC
Laying on Wooden Floors
(Including tongue & Groove Chipboard)
The timber should be stable and able to carry the weight of the levelling compound and the overlayment. Flooring must not move when stepped upon. Partitions must not flex when pressed by hand. if this is not the case, reinforce the floor with noggins between the joists and replace the boards. Brace unstable partitions. the surface of the timber should be primed with Stonefix Acrylic Primer diluted 1:1 with clean water.
Mixing & Laying
No additive is required. Each 25kg bag should be mixed with 5 litres of clean cool water. Mix with a slow speed mixing drill and whisk attachment for approx two to three minutes to remove all air bubbles. When pumping StoneFix XP250 Self Levelling Compound check the material flow regularly to ensure the correct consistency of material is being achieved.
Drying
Setting and hardening times will vary depending on temperature and ventilation. Setting and hardening times will be shortened at high temperatures and extended at low temperatures. Adequate ventilation is essential during the drying process but draughts must be eliminated to avoid uneven drying patterns.
Generally StoneFix XP250 Self Levelling Compound can withstand light foot traffic after two to four hours at 20 oC. At 20mm thick and temperature of 20 oC the floor will be ready for the finishing covering after 24 hours.
Joints
In accordance with Codes of Practice all isolation joints, construction joints, columns and the like should be isolated to allow both the substrate slab and topping to move freely relative to the fixed part of the building. therefore all isolation and construction joints should be made conformable through the topping by disc cutting within 24 hours so as to prevent stress induced cracking caused by building or slab movement.
Yield
For every 1mm thickness 1.7kg of dry powder per square metre will be required, i.e. 1m2 at 10mm thickness will require 17kg of dry powder.
Typical Performance
Fresh Properties:
Pot life 25-30 minutes (temperature dependent)
Flow Ring values: 235-230mm (65mm Ø, 40mm High Flow Ring)
Zero Plastic Shrinkage
Hardened Properties
Compressive Strength N/mm2 (air cured at 20 oC)
1 day - 10.0
7 days - 35.0
28 days - 40.0
Flexural Strength N/mm2
7 days - 3.0
28 days - 8.0
Packaging & Storage
StoneFix XP250 Self Levelling Compound is supplied in nominal 25kg sacks, palletised and shrink wrapped. Palletised product should be stored in cool dry areas clear of the ground, sheeted or under cover and stacked not more than two pallets high. The product should be used on a first in - first out basis.
Shelf life is six months subject to storage at correct temperature and humidity.
Health & Safety
See separate data sheet.
Quality Control
All StoneFix products are factory blended, tested and packaged to quality control procedures in accordance with BS EN iSO 9001 series.
Have used before, good product
Supplier will send by carrier to site if not available in your area
Last edited by Leatherface; 01-02-2009 at 05:42 PM.
Tilers Forums is the UK's largest wall and floor tiling forum. Advice is provided free of charge to all users. Tilers Forums does not take responsibility for any loss or damage caused due to following advice found on this forum. All wall and floor tiling should be carried out by a qualified wall and floor tiler. Views expressed on this forum are of the users and not Tilers Forums. Views expressed on this tiling forum are of the contributor only and not the forum as a whole. Not all views should be taken as fact but simply the opinion of the person posting. Readers are reminded to seek professional advice before undertaking any wall and floor tiling project.
LinkBack URL
About LinkBacks
inpatient customer
Reply With Quote
.thats dispersion wall adhesive.....
Bookmarks