Adhesives Adhesives

Today’s LessonToday’s Lesson

Types of adhesivesTypes of adhesives Properties of adhesivesProperties of adhesives Health and SafetyHealth and Safety

Adhesive Adhesive What is adhesive?What is adhesive?

Adhesive is a compound that adheres Adhesive is a compound that adheres or bonds two items together.or bonds two items together.

Types of tile adhesivesTypes of tile adhesives In the tiling trade adhesives can be In the tiling trade adhesives can be

categorised as the following.categorised as the following.

Cement BasedCement Based Polymer BasedPolymer Based Acrylic BasedAcrylic Based

AdhesivesAdhesives We are now going to discuss these We are now going to discuss these

adhesives and look atadhesives and look at What they consist ofWhat they consist of Where they are usedWhere they are used How they are appliedHow they are applied Health and safetyHealth and safety

Cement basedCement based Cement based adhesives generally Cement based adhesives generally

come in powder form and contained come in powder form and contained in bags.in bags.

Bags often come in different sizes Bags often come in different sizes ranging from 1kg bags to 25 kg bags.ranging from 1kg bags to 25 kg bags.

Cement based adhesives are mixed Cement based adhesives are mixed with water to gain a workable with water to gain a workable consistency.consistency.

Examples of cement based adhesivesExamples of cement based adhesives

Cement Based AdhesiveCement Based Adhesive What type of Surface?What type of Surface? New Concrete/Brick/Block Walling New Sand/Cement Rendering/Gazed

Tiles/Bricks

Polymer AdhesivesPolymer Adhesives

Generally pre-mixed and also Generally pre-mixed and also contained in bag form or sealed contained in bag form or sealed plastic tubs/buckets.plastic tubs/buckets.

Buckets come in different sizes and Buckets come in different sizes and weights often measured in litres of weights often measured in litres of volumevolume

usually no water required and is in a usually no water required and is in a pre-ready slump mixpre-ready slump mix

Examples of Polymer AdhesivesExamples of Polymer Adhesives

Polymer Modified AdhesivePolymer Modified Adhesive What type of surfaces/backgrounds?What type of surfaces/backgrounds?

Acrylic Based AdhesiveAcrylic Based Adhesive Acrylic Based are more commonly Acrylic Based are more commonly

know as the “ready mixed” adhesive. know as the “ready mixed” adhesive.

Acrylic based adhesiveAcrylic based adhesive Usually in tub formUsually in tub form

Ready MixedReady Mixed What type of background/surfaces?What type of background/surfaces?

Ceramic tiles 300mmx300mm and smallerCeramic tiles 300mmx300mm and smaller Gyproc, Plaster and Gyproc, Plaster and sand and cement render. sand and cement render.

Certain Types can stick to plywood.Certain Types can stick to plywood. Cannot be used for floorsCannot be used for floors Ease of use no mixing required and has excellent Ease of use no mixing required and has excellent

pot life.pot life.

Using Tile AdhesivesUsing Tile Adhesives Always follow relative health and safety Always follow relative health and safety

procedures pertaining to manufactures procedures pertaining to manufactures instructions.instructions.

Mix and apply adhesive following Mix and apply adhesive following manufactures instruction and manufactures instruction and specifications. specifications.

Most of the information on the above can Most of the information on the above can be found on the back of the bucket or bag.be found on the back of the bucket or bag.

Application of adhesiveApplication of adhesive

A serrated/notch edge trowel is used A serrated/notch edge trowel is used to apply the adhesiveto apply the adhesive

Trowels come in different sizes and Trowels come in different sizes and notch widths for different surfaces notch widths for different surfaces and tile formats (size)and tile formats (size)

Fixing to adhesiveFixing to adhesive Wall tiles should be fixed using the Wall tiles should be fixed using the

twist and slide method “pressed twist and slide method “pressed home” and floor tiles “beaten down”home” and floor tiles “beaten down”

GroutsGrouts We are now going to discuss grouts We are now going to discuss grouts

used in the Wall and Floor Tiling used in the Wall and Floor Tiling IndustryIndustry

We are going to discuss types of We are going to discuss types of grout and their suitable applicationsgrout and their suitable applications

Grouts Grouts What is Grout?What is Grout? Grout is a component used in Grout is a component used in

construction to infill between the construction to infill between the joints of tiles.joints of tiles.

Tiling grouts usually come in two Tiling grouts usually come in two categories categories

1.cement based 1.cement based 2. epoxy 2. epoxy

GroutsGrouts Cement based grouts are like cement Cement based grouts are like cement

based adhesives usually come in based adhesives usually come in powder form and normally contained powder form and normally contained in bags.in bags.

Water is added to the powder and is Water is added to the powder and is mixed to a workable consistencymixed to a workable consistency

Cement groutsCement grouts Examples of cement based groutsExamples of cement based grouts

GroutsGrouts

Epoxy grout is usually used for areas of constant Epoxy grout is usually used for areas of constant water or high levels of chemicals such as water or high levels of chemicals such as swimming pools, areas where food is served and swimming pools, areas where food is served and garages etc.garages etc.

Generally comes in two parts and is contained in Generally comes in two parts and is contained in bucket form.bucket form.

Grouting by epoxy is usually slow and time Grouting by epoxy is usually slow and time consuming.consuming.

This product can cause allergic reactions to skin This product can cause allergic reactions to skin and breathing and all H+S must be adhered toand breathing and all H+S must be adhered to

Epoxy groutsEpoxy grouts Examples of epoxy groutExamples of epoxy grout

Using tile groutUsing tile grout All grouts should be used inconjuction with All grouts should be used inconjuction with

manufactures specifications. manufactures specifications. Health and safety should be adhered to at all Health and safety should be adhered to at all

times.times. Details on application, specifications and health Details on application, specifications and health

and safety are usually found on the back of and safety are usually found on the back of bags or containers. You should refer to bags or containers. You should refer to manufactures COSHH or data sheets as only manufactures COSHH or data sheets as only the basic Health and Safety is give on the basic Health and Safety is give on packaging. packaging.

SummarySummary Both adhesives and grouts share similar Both adhesives and grouts share similar

ingredients and compounds but are used for ingredients and compounds but are used for entirely different reasons.entirely different reasons.

Additives for both can be used for Additives for both can be used for strengthening,flexibilty and enhance strengthening,flexibilty and enhance adhesives and grouts.adhesives and grouts.

Since the advent of modern day tiling Since the advent of modern day tiling adhesives and grouts, the trade has exploded adhesives and grouts, the trade has exploded and made it even more accessible for people. and made it even more accessible for people. As advances occur the tiler must adapt and As advances occur the tiler must adapt and use all types of adhesives from many new use all types of adhesives from many new manufactures. manufactures.