Technical Data Sheet (TDS)

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MACHINE

Extra-strong adhesive for pasting machine - all types of wallpapers

Uses

QUELYD MACHINE is a methyl cellulose based adhesive reinforced with synthetic resins designed for use with a pasting machine for hanging:
- normal, light, medium and heavy weight wallpapers
- washables
- Simplex or Duplex embossed wallpaper
- paintable wallpapers or woodchip
- water ink printed wallpapers
- flat, light and heavy weight vinyls
- expanded vinyls
 
For use onto plaster-based substrates, gypsum wallboards, prepared old wallboards, painted walls, plaster coatings, particleboards and wooden substrates.

Benefits

  • Can be used with all types of pasting machines
  • Adapted viscosity: regular pasting
  • High yield: 1 pack per up to 9 rolls
  • Neutral: do not affect colours of delicate wallpapers
  • Ideal for hanging wallcoverings in kitchens and bathrooms
  • Can be used on alkaline substrates: concrete, cement
  • Contains antifungal and biocide additives to prevent mould growth
  • Ready mixture can be stored for over a week

Properties

Physical:

  • Adhesive type: methyl cellulose based adhesive reinforced with synthetic resins
  • Colour: translucent
  • Specific gravity: approx. 0.5
  • pH in solution: approx. 7.0
  • Paste preparation time: approx. 25 minutes
  • Resistance to micro-organisms: very good
  • Full cure: after 24-48 hours subject to ambient conditions, relative humidity and substrate porosity
  • Yield per pack: approx. 7-9 rolls 
  • Working temperature: between +10° and + 25°C

Consumption:

1 pack per 7-9 rolls

Safety:

IMPORTANT: before embarking on any work involving QUELYD MACHINE the separate Product Safety Data Sheet must be studied carefully by those carrying out the work. Observe good hygiene in use.  Keep out of reach of children and animals. Avoid contact with eyes and skin.

Shelf life:

unlimited if stored in unopened pack in dry conditions. Ready mixture can be stored for over a week in a closed container in a frost-free place.

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Application

PREPARATION
Preparation should be in accordance with building standards. Walls must be sound, even, smooth, permanently dry and free from dust, grease or other contaminants, and have normal porosity.
The moisture content for plaster based substrates should be lower than 5%, for wood and derivatives - 12%± 2 %.
 
Absorbent substrates
Fill all cracks and holes. Fix flaky and chalking substrates with QUELYD DURCISSEUR ACRYLIQUE primer.
For gypsum wallboards use water-based primer QUELYD DURCISSEUR ALCOOL.
Particleboards and plywood should be primed with solvent-based primer QUELYD DURCISSEUR ALCOOL.
On waterproof and fireproof wallboards it is compulsory to use solvent-based primer QUELYD DURCISSEUR ALCOOL.
Do not use rich, nutritive primers or "remaining paint" type mixtures, which may seal the substrate.
 
Painted surfaces
Scrape off any flaking paint and smooth the surface with a sanding block. Glossy and semi-gloss paint should be sanded to bring porosity to the substrate. Eliminate sanding dust. A coat of adhesion promoting primer should be applied prior to wallcovering installation. Allow to dry for at least 24 hours.
 
Old wallpapers and wallcoverings
Remove old wallpaper and colour wash using Wallpaper Remover. Rinse thoroughly to get substrate perfectly clean.
 
When hanging vinyl wallcoverings onto new or old substrates, we recommend to wash the walls thoroughly, then rinse with a water-diluted household bleach.
 
ADHESIVE PREPARATION
Pour the required quantity of clean water into the bucket depending on the type of wallcovering.
 

Wallcovering type
Cold water mix (litres)
All types of wallpapers, light weight vinyls
8
Heavy weight vinyls, expanded vinyl wall coverings
7

Stir the water rapidly with a stick. Sprinkle the contents of one pack into water, mixing briskly for approximately 30 seconds. Leave for 25 minutes and stir thoroughly again. The adhesive is ready to be poured into the tank of the pasting machine.
 
PASTING AND HANGING
Using pasting machine apply the adhesive generously in a regular manner on the back of the wallpaper. Fold the strip (or "book") pasted side to pasted side, i.e. bring both edges toward the middle. Make sure that the edges are lined up to avoid early drying of the adhesive.
Curling wallcoverings must be rolled up in order to flatten them.
Observe a booking time of 5 to 10 minutes depending on the thickness of the wallpaper and the manufacturer's instructions. Always observe the same booking time throughout hanging operation.
 
HANGING WALLPAPER
Use a plumb line to make sure the first strip is perfectly straight. Hang the first strip. Gently slide the paper until the outer edge is lined up with the starting line. Hang subsequent strips edge to edge or according to the manufacturer's recommendations and in the predefined order.
Using a wallpaper brush, carefully press the wallpaper from the top downwards and from the centre toward the edges, taking care to roll out air bubbles and spread out any uneven patches of paste.
Flatten the joints according to manufacturer’s instructions. Excess lengths near the ceiling and skirting board will be trimmed using a cutting blade, guided by a broad knife.
Immediately wipe off accidental splashes with a clean damp sponge.
 
REMARKS
- Carefully read the hanging instructions and strictly follow the manufacturer's recommendations
- Do not start hanging wallcoverings from an outside corner
- The paste can be strengthened by adding ready-mix vinyl adhesive.
 
Cleaning
Tools can be easily cleaned with cold water

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Packaging

Presentation Bar code Bostik code
pack - 200 g 3549210002567 081760

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