HEY’DI K11TANKING

SYSTEM

HEY’DI K11TANKING

SYSTEM

By Appointment to H M The QueenBuilding Materials Manufacturers

Sovereign Chemicals LimitedBarrow in Furness

CI/SfB

TECHNICAL APPROVALS FOR CONSTRUCTION (13)

L6814Uniclass

In new build situations, maximising theuseable space of a building byincorporating a substructure basement ismore and more becoming a considerationfor designers and clients alike. In existingdomestic properties adding value andlifestyle improvements by the conversionof damp/wet basements to provideadditional useable space offers significantlong term benefits.

Substructure waterproofing designguidance is given in BS 8102:2009Protection of structures against waterfrom the ground. This document assistsdesigners, engineers and specifiers inadvising on methods of dealing with andpreventing the entry of water fromsurrounding ground into a building below

Basements can provide valuable additional space in commercial, civil and of course domestic buildings

ground level, given the clients’ expectationsand existing structure type and condition.

The term ‘Tanking’ refers to theapplication of a bonded membrane to asubstrate which will prevent the passage ofground water. This method ofwaterproofing is categorised as Type Awithin BS 8102.

STRUCTURAL WATERPROOFING

TANKINGTanking systems are applied to either thepositive side or the negative side of a substrate.Positive tanking is achieved when the hydrostaticwater pressure is pushing the tanking onto thesubstrate and is generally used in new buildsituations.

Negative tanking is where the tankingsystem is applied to the other side of a wall and thehydrostatic water pressure will try to push thetanking off the substrate. This approach is generallyused in existing basements and complies with therequirements of BS 8102. Successful Tanking on thenegative side requires a comprehensivespecification, as supplied free of charge by Sovereignon request.

When tanking existing basements internally, products suchas asphalt, self adhesive membranes or liquid appliedmembranes all require a supporting vertical brick orblockwork lining wall, which isnormally backfilled with asand/cement mix and loaded with aconcrete slab or a minimum 50mmsand/cement floor screed, incurringobvious space penalties.

TANKINGONNEGATIVESIDE

TANKINGONPOSITIVESIDE

All below ground structuresdiffer and because of this

Sovereign provide a free ofcharge K11 Tanking

Specification Service to assistin ensuring long termsuccess of the system

The Sovereign Hey’di K11Tanking System will provide

Type A protection inaccordance with this BritishStandard Code of Practice

The Sovereign Hey’di K11 Tanking System, however, can beapplied direct to the suitably prepared/rendered substrate,with a final thickness of less than 5mm, without the

necessity of a supporting backfilledwall or loading concrete slab. Thiscan lower overall project costs byreducing material quantities andlabour time.

The photos on the front cover show a series of before, during and after

situations where the Sovereign Hey’di K11 Tanking System has been applied

Sovereign Hey’di K11 is an alkali-resistant synthetically modified cementwhich is mixed with styrene-butadiene and water, producing a waterproof

slurry coating preventing both damp and waterpenetration. The chemicals in theslurry react, penetrate and fill off or block thecapillaries, bonding onto the preparedsurface, forming a strong monolithic bondenabling it to resist hydrostatic pressure.

Lateral/penetrating damp in above and belowground situations can be resolved for both oldproperties and new buildings using the SovereignHey’di K11 Tanking System. The K11 TankingSystem has proved to be highly successful forwaterproofing many varying types of structureworldwide for many years.

Tanking is the creation of a watertight envelope as it must be assumed thatwater pressure will come to bear upon the structureat some point in its life - BS 8102 refers. Thereforewith any below ground or retaining structure, tankingshould be applied to all surfaces below ground level,and ideally linked in with an effective damp proofcourse above ground level in order to achieve acontinuous system.

If continuity is not achieved, for whatever reason,then the basement will remain vulnerable todamp/water ingress via untreated areas.

Tanked basement, before and after treatment,now dry and capable of being used for manydomestic purposes

EARTH+

WATER

The K11 System has the uniquecharacteristic that the materialbecomes an integral part of,and achieves a monolithicbond with the substrate

EARTH+

WATER

We strongly recommend the useof Sovereign RenderliteRenovating Plaster, an easy toapply internal plaster that hasexcellent thermal qualities, idealfor tanking situations.

Furthermore, the SovereignConCure 20/20 Wall MountedPositive Input Ventilation Unit isstrongly recommended also. This isa state of the art home ventilationand condensation control unitwhich gently ventilates the area andassists in re-distributing heat from acentral location in the basement orflat.

K11 TANKING SYSTEM

K11

Sovereign understand the importance of DesignConsiderations and are Proud of the Free of charge Individual Technical

Specification Service available to Customers on request

Applying the second coatof K11 completing asecure, space saving,

dry envelope ready forplastering, decorating

and occupation

WALL+

WATER

WALL+WATER

PLUS K11

Remember below ground areas are particularlyprone to condensation. Tanking may encourage

the potential for condensation to occur andconsideration must be given to its control

POWDER XPowder X is a rapid setting/pluggingcompound with almost instant curing, usedto stop water ingress prior to tanking withthe K11 System. It can beapplied as a dry powder ormixed with water into a wetpaste and used as a plug.

Ground water migrates into theretaining wall and transfersthrough to the internal space

Preparation and Applicatio

Products must bestored in clean, dry

conditions

The K11 Tanking System must be applied to structurally stable walls and floors, which must meet the current designstandards/regulations for the intended purpose and situation. Floors must be of such design so as to resist both floatation

stresses exerted by hydrostatic pressure and deflection from internal loading. Although not always possible, the inclusion of amaintainable external land drainage system should be considered as an integral part of the overall waterproofing design.

The following guidelines are for the preparation and application of the K11 Tanking System in an existing basement

Thorough preparationof the substrate iscritical to theoverall success ofthe tanking system

Typically forexistingstructuresthis willinvolvemechanicalpreparation

Thoroughlyclean andsaturate thesubstrate withclean waterprior toapplication

Afterrecommendedcuring periodnewlyconstructedfloors must bepressurewashed toremove anysurfaceresidues/laitance oftenformed duringconcretecuring

Take stepsto preventwateringressbeforecontinuing.This can beachievedusingPowder X

ApplyAntisulphatediluted 1:1with waterdirect ontothe preparedsubstrateand leaveovernight

Brush apply towalls a bondingcoat consistingof SovereignSBR:water 1:1mixed withfresh OPC

render upusing SovereignSulphate ResistantReady Render orsand:cement 4:1gauged withSovereign SBR:water1:4 typically 8-10mmin thickness. Allow toset and hardenovernight

Apply neat Antisulphateonto the renderedsubstrate and allow tosoak in

1 2 3

4 5 6

7 8 9

Whilebondingcoatis tacky,

These are general guidelines. As no two basements are the same we would always recommend that a specification is obtained from our Technical Department

ion of K11 Tanking System

The K11System mustbe appliedonto a dampsurfacewhere theunderlyingsubstrate hasa highmoisturecontent.Wet downusingSovereignSBR:water 1:9

Mix K11 Grey withSovereignSBR:water 2:1 intoa slurry and applyfirst coat to wallsoverlappingapprox 200mmonto floor, by blockbrush, achieving acoating thicknessof 2mm - 2.5mm

Mix andapplysecond coatof K11 Grey- as perstep 11above,sandwichingthe filletsbetweencoats

On completion of walltanking, mix andapply a singlecoat of K11Grey ontotheremainingfloor area

Loadbearingfixingsshould bemade usingHey’di RapidMortar. Nonstructuralfixings canbe securedontofinishedsurfacesusingSovereignPro Stick2000

Allserviceentriesmust beeffectivelysealed usingSovereign ProStick 2000

using SovereignRenderliteRenovating andFinish Plasterswhich should beapplied onto atacky bondingcoat as per step 7

Uponcompletionand curingof tanking,the wallscan beplastered

Only vapourpermeablefinishesshould beused fordecoration

Note 1: Antisulphate treatment is required where groundwater/salts are present.Note 2: Sound new build structures may not require the applica-tion of a modified render coat enabling K11 to be applied direct.Note 3: Tanking may encourage condensation and considerationmust be given to its control.

We recommend the use of Sovereign Renderlite Renovating Plasterwhich has excellent thermal properties, ideal for this situation.Furthermore the Sovereign ConCure 20/20 Wall Mounted PositiveInput Ventilation Unit could also be used to provide home ventilationand condenstion control in basements.

10 11

13 14 15

16 17 18

25mm Fillet

At all verticaland horizontaljoints a 25mmangled filletmust be formedusing BarrierMortar mixedwith water asgauging.Allow to set

12

K11 TANKING SYSTEM - TYPICAL USESPrimarily the Sovereign Hey’di K11 Tanking System

has been used for providing Type A waterproofing ofsubstructures such as cellars and basements. However,the K11 system has also been successfully put to good

use in many other damp proofing or waterproofing situations, such as:

K11 treatment in the recovery of flooded buildings.The use of the K11 system can assist in ensuring

flooded buildings are successfully re-instated andre-occupied in significantly reduced timescales, thus

proving beneficial to all concerned

K11treatmentabovegroundlevel topreventrainwaterpenetration

Assistance, Advice and IndividualTechnical Specifications are freely

available from our TechnicalDepartment on request

Above are just a few of themany varied uses of theSovereign Hey’di

K11Tanking System

Tankingequestrian

pools

Tanking KoiCarp/Fish ponds

Tankinggarageinspectionpits

Tankingbund

walls forstorage

tanks

Tankingof aSwimmingPool atOxfordUniversity

In certain areas ofthe country Radon

reduction measuresmay be required -

further detailsavailable on

request

Sovereign Productsare also ideal

for Tiling inSwimming Pools- further details

available on request

K11treatmentaboveground levelwhere it isnot feasible,for whateverreason, toinstall aremedialdamp proofcourse

Technical Data

Safety DataK11, Barrier Mortar, Powder X, Rapidand Renderlite Renovating Plasterare cement based products. Contact with wetproduct or between dry powder and body fluid maycause irritation to eyes or skin - avoid contact.Contact with skin can sensitise certain individuals -wear gloves. Avoid breathing dust. Wear goggles ifrisk of eye contact, spraying or when workingabove head height.

K11An alkali-reactive waterproof-ing product based on cement,modified with alkali resistantmaterial in Grey and White.Working time of 20 minutesInitial set 4 hours Final set 5 hoursBonding strength:After 2 days > 5N/mm2

After 28 days > 22N/mm2

Compressive Strength:After 2 days > 7N/mm2

After 28 days > 50N/mm2

U Value < 100 Chloride contents < 0.002% Dynamic E modulus after 90days < 30000N/mm2

Adhesion Strength > 3N/mm2

Water Impermeability Certificates and Tests.British Board of Agrement No 91/2608.Potable Water Complies with BS6920 for use with drinkingwater. Listed in Water Fittings and Materials Directory underconcrete cement and mortar waterproofers 5055 ASTME-149, ASTMC-190 ASTMC 580 Army-C.E. CRD-C48.55.Under normal use will provide an effective barrier to thetransmission of liquid water for the life of the building towhich it is applied.Packaging: 25kg sacks. Storage: Approximately 1 year in dry conditions.Cleaning Utensils: Wash with water after use.

SBR BONDING AGENTA water resistant dispersionof carboxylatedstyrene-butadiene-styreneblock copolymer. Thematerial is non-ionic, freefrom fillers, polyvinyl acetateand organic solvents. SBR Bonding Agent oncecured will not re-emulsify,unlike PVA, and shouldalways be used in dampconditions for screeds,external renders, etc.Solids content > 47 % Filler contents 0 %pH value 10.5 - 11.5Specific Gravity approx. 1.01Viscosity approx 100mPa.sMin. film formation temp. 0°CFiIm tensile strength > 1.5N/mm2

FiIm clonation > 1000%Material: A white IiquidPackaging: 10kg and 5kg bottlesStorage: store closed in a dry placeAfter use, bottles should be carefully resealed to preventskin-formation If freezing occurs allow the product to thaw slowly atroom temperature SBR Bonding Agent has a shelf Iife of one year Cleaning utensils: Wash with water after use

ANTISULPHATEAntisulphate is anaqueous Zincfluoro-silicate solutiondesigned to neutralise saltsin masonry.

Brush apply or use a lowpressure non-atomisingspray producing droplets isideal for application.

Viscosity approx 5rnPa.sMaterial: A clear liquid Coverage: 10kg does 45m2 for 2 coat applicationPackaging: 10kg & 5kg plastic bottlesStorage: Store closed in a dry placeAlthough the materials are not sensitive to frost, it isrecommended the cans are stored at temperaturesabove 5°CShelf life: Up to two yearsCleaning Utensils: Clean with water immediately afteruse

BARRIER MORTARA hydrophobic ready mixed repairmortar based on cement, modifiedwith artificial resins. Barrier Mortarwill not crack unlike hardsand:cement and is ideal fortanking fillets.Mixing water required < 12%Working time about 5 hours Initial set about 6 hours Final set about 7 hoursTensile bending strength28 days > 6N/mm2

Compressive strength28 days > 40N/mm2

Water absorption coeficient 0.05kg/m2h° 5Coverage: Angled fillet with 25mm side about 1.0kg/linear metre Material: A grey powderPackaging: 25kg sacksStorage: Store the bags closed in a dry placeFrost resistantShelf Iife: Up to two yearsCleaning Utensils: Clean with water immediately after use

RAPIDA quick setting cement basedpowder which when mixed withwater and/or SBR Bonding Agentwill set in one minute and becured in about 8 minutes. For usein general repair work, fillingcracks, etc. It can be mixed withsand and/or Portland cement toextend curing times as follows:-

Fast Setting Portland Sand HardenedCement Cement 35 F Approx. After1 Part - - 2 Minutes1 Part 1 Part - 7 Minutes1 Part - 3 Parts 11 Minutes1 Part 1 Part 6 Parts 33 Minutes

Material: A grey powder Coverage: Depending on use Packaging: 15kg bucketsStorage: Store closed in a dry place, Shelf Iife up to two yearsCleaning Utensils: Clean with water immediately after use

SBR Bonding Agentis a white liquid carboxylated styrene-butadiene-styrene block copolymer. It is essentiallynon-hazardous but the following general safetyprecautions are applicable. Avoid contact with eyes.In cases of contact with eyes or skin, wash off withclean water.

Antisulphateis an aqueous zinc fluoro-silicate solution. Avoid

RENDERLITERENOVATING PLASTERAn easy to apply internal plasterincorporating water resisting andsalt inhibiting additives whilst stillallowing the wall to breathe. It alsohas a U value much lower thansand/cement renders or gypsumbased plasters. Particularlysuited to post tanking situations.Material: A grey powderCoverage: Approximately 3.5m2

per 25kg bag at 10mm thicknessPackaging: 25kg sacksStorage: Store the bags closed ina dry placeFrost resistant Shelf life: 6 months unopened when stored according toinstructions

contact with skin and eyes. Wear gloves andgoggles. When spraying use a coarse, non-atomisingspray and wear a respirator fitted with A1P2 filter.

FULL SAFETY DATA SHEETSARE AVAILABLE ON REQUEST.C.O.S.H.H. REGULATIONS apply to theseproducts and C.O.S.H.H. assessments should becompleted before commencing contracts.

POWDER XPowder X is a rapidsetting/plugging compound withalmost instant curing, used tostop water ingress prior totanking with the K11 System. Itcan be applied as a dry powderor mixed with water into a wetpaste and used as a plug.Material: A grey powder Packaging: 5kg and 15kg plastic bucketsShelf life: 12 months when stored unopened and above groundin cool dry conditions

CERTIFICATE No 91/2727

2kgper M2

4kgper M2

2.5kg to25kg K11

5kg to25kg K11

1 SBR to2 Water

2 SBR to1 Water

1kg per13.5M2

1kg per4.5M2

1kg perlinear M

AboveGroundLevel

BelowGroundLevel

K11 SBR toK11

SBR toWater

as Gauging

BarrierMortaras Fillet

AntiSulphate

ON

E C

OA

TTW

OCO

ATS

Coverage Rate GuideSovereign Hey’di K11 Tanking System

MIXINGRATIOS

C H E M I C A L S L I M I T E D

Park Road, Barrow in Furness, Cumbria LA14 4EQTel: (01229)870800 Fax: (01229)870850

email: sales@sovchem.co.uk web site: www.sovchem.co.uk

By Appointment to H.M. The QueenBuilding Materials Manufacturers

Sovereign Chemicals LimitedBarrow in Furness

1kg perlinear M

Note: Additional SBR Bonding Agent will be required wherebonding coats and a modified render coat are to be applied.

This will be at a rate of 0.2 kg SBR/M2 for each coat.

MIXINGRATIOS

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Features of the K11 Tanking System� Self supporting System� No requirement for supporting structures� Only 4-5mm in thickness� Provides maximum use of available space� Forms a monolithic bond with substrates� Tested to 15 bar pressure on negative side� Used successfully worldwide for many years� Straightforward application� No expensive specialised equipment required� BBA Certificate No 91/2608� Durable life of building solution� Suitable for new and existing structures� Applied to positive or negative side of structure� Variety of alternative uses� Provides Type A protection in accordance with BS 8102