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WHAT TREATMENTS – HOW IS WOOD TREATED

TANALISED  TANATONE AND VAC VAC PRESSURE TREATED TIMBERS

  1. TANALISED AND TANATONE TIMBERS AT JON WALKER TIMBER.

 

PRIOR TO THE TREATMENT PROCESS THE OPERATOR MUST TEST THE TIMBER WITH A MOISTURE METER AND ALSO TEST THE STRENGTH OF THE CHEMICAL

 

TIMBER IS LOADED INTO THE TEATMENT VESSEL OR AUTOCLAVE . INITIAL VACUUM IS APPLIED AND THE TIMBER CELLS ARE EVACUATED OF AIR. THE VACUUM IS HELD.

THE AUTOCLAVE CYLINDER IS THE FLOODED  UNDER VACUUM WITH THE TANALITH WOOD PRESERVATIVE AND WITH TANATONE BROWN COLOURANT IF REQUIRED

 

AIR IS THEN PUMPED AND COMPRESSED UNDER PRESSURE FORCING THE PRESERVATIVE DEEP INTO THE CELL STRUCTURE OF THE TIMBER.

AT THE END OF THE REQUIRED CYCLE THE CHEMICAL PRESERVATIVE IS DRAINED BACK INTO SAFE STORAGE TANKS IN A BUNDED AREA .

FINAL VACUUM EXTRACTS EXCESS PRESERVATIVE SOLUTION WHICH IS PUMPED BACK TO STORAGE .

LOW PRESSURE INSIDE THE TIMBER DRAWS IN SURFACE SOLUTION WHEN VENTED TO THE ATMOSPHERE .

THE TIMBER IS TREATED WITH THE VERY LATEST GENERATION  TANALITH WOOD PRESERVATIVE , AND THROUGH A PROVEN HIGH PRESSURE PROCESS , AT JON WALKER TIMBER

 

OUR TANALISED TIMBERS ARE DESIGNED FOR USE IN THE MOST EXTREME ENVIRONMENTS , INCLUDING PERMANENT EXTERIOR USE AND EVEN IN THE GROUND OR FRESH WATER CONTACT.

THE HIGH PRESSURE PROCESS DRIVES THE TANALITH PRESERVATIVE DEEP INTO THE TIMBER FIBRES WHERE IT BECOMES LOCKED INTO THE TIMBER CELLS AND PROTECTS AGAINST ALL FORMS OF WOOD DECAY AND INSECT ATTACK.

JON WALKER TIMBER GREEN LABEL 15 YEAR SERVICE LIFE

JON WALKER TIMBER GOLD LABEL    25 YEAR WARRANTY .

VAC VAC TREATED TIMBERS

AT JON WALKER TIMBER  -FOR OUR JOINERY TIMBERS WE CAN OFFER A CLEAR  LOW PRESSURE PRESERVATIVE TREATMENT USING VACSOL PRESERVATIVE  .

THIS PROVIDES A SIMPLER ENVELOPPE PROTECTION AROUND THE TIMBER COMPONENTS

AND ENSURES THERE IS A MINIMAL DIMENSIONAL CHANGE.

 

THE FRESHLY  TREATED TIMBERS MAINTAIN A NATURAL COLOURATION .

VAC VAC TREATED TIMBERS ARE MAINLY USED FOR INTERNAL BUILDING TIMBER APPLICATIONS. HOWEVER EXTERNAL JOINERY AND CONTRUCTION USED ABOVE DPC LEVEL CAN BE TREATED BUT THE TIMBERS MUST HAVE AN APPROPRIATE AND WELL MAINTAINED SURFACE COATING PROTECTION ADDED .

 

VAC VAC CYCLE

 

VACUUM IS FIRST CREATED AND TIMBER CELLS ARE EVACUATED OF AIR.

THE VACUUM IS HELD.

VESSEL IS FLOODED UNDER VACUUM , RELEASE OF WHICH THEN FORCES THE VACSOL PRESERVATIVE INTO THE WOOD CELLS UNDER ATMOSPHERIC PRESSURE .

LOW PRESSURE MAYBE APPLIED FOR MORE RESISTANT SPECIES OR TO ACHIEVE A HIGHER SPECIFICATION.

 

THE CHEMICAL DRAINS FORM THE TIMBER BACK INTO THE STORAGE TANK IN A BUNDED AREA.

THE SECOND VACUUM APPLIED TO EVACUATE TIMBER CELLS OF PRESERVATIVE

THE SURFACEIS INITIALLY WET .

VENTING TO ATMOSPHERIC PRESSURE , DIVES SURFACE PRESERVATIVE BACK INTO THE TIMBER.

TO PRODUCE AFTER DRYING TIME , A DRIP DRY SURFACE .

 

INTERNAL LIFE EXPECTANTCY 60 YEARS

EXTERNAL LIFE EXPECTANCY 30 YEARS

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JON WALKER   15.05.2020

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