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Jointing
& finishing

CONCEPT OF JOINTING AND FINISHING

Jointing and finishing is the process through which gypsum board systems are transformed into smooth, structurally sound walls and ceilings. This process eventually determines the look of the interiors.

JOINTING AND FINISHING PRODUCTS

LEVELS OF JOINTING AND FINISHING

Traditionally, the quality of a surface has been judged subjectively, with the use of phrases such as “ready-for-painting”, “ready-for-covering” and so on. However, these are not suitable for describing the level of finish. A “finished” and “ready-for-painting” surface for one person may be a sub-standard one for another.

The quality of finish of gypsum board is defined by the Euro Gypsum standards (based on EN 13963). The level of finish is affected by the dimensional tolerances of boards, metal framings and level of workmanship. The flatness of the drywall and ceiling also impact the level of finish.

Local Flatness
Standards

A ruler of 200 mm applied on the cladding of the drywall, particularly at the joints, must not have a difference bigger than 1 mm between the most salient point and the point furthest away.

General Flatness
Standards

A ruler of 2000 mm length applied to the face of the drywall and moved in all directions must not have a difference bigger than 4 mm between the most salient point and the point furthest away

Stages Of Jointing And Finishing

Shallow light (natural or artificial) can affect the appearance of the surface. Ideally, lighting conditions where the board systems are used should be known in advance. The surface quality should not be judged by flood-lighting, and the limits of manual workmanship should be considered.

jointining levels

q1

Simply filling the joints between the boards with Pro-Fill / Easi-Fill and Tape

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q2

Q1+leveling the joint to the board surface with help of Pro-Fill / Easi-Fill

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finishing levels

q3

Q2 + a tight coat (<1mm) over entire board surface with the Pro-Fill / Easi-Fill

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q4

Q2 + a skimming coat of Gyproc Champion Skimming Putty (>1mm) over entire board surface

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Jointing And Finishing Process

Jointing And Finishing Process Steps

Surface Preparation removes dust from the gypsum board and sets the fixings & screws
below the surface. The homogeneous mixture of Gyproc Easi-Fill®/Pro-Fill®/Pro-Top® with clean
water ensures that no unmixed powder/lumps remain in the mixed material.  

step 1

After framing and boarding the surface is ready for jointing and finishing

step 2

Prefill the joint with Jointing Compound

step 3

Apply first coat of jointing compound with paper tape

step 4

Allow the first coat to dry then apply the second coat

step 5

Allow the second coat to dry then apply the third coat

step 6

Sand joints after jointing compound dries

step 7

Surface is ready after jointing and finishing for final surface finishing