GypSorb Joint Treatment
GypSorb Gypsum Joint Treatment Ready Mix Data
Cost-effective installation techniques with GypSorb Ready Mix Joint Adhesive and GypSorb Ready Mix Finishing Compound.
The GypSorb Ready Mix Set can be used for our proven installation techniques:
Create bonded joints using GypSorb Ready Mix Joint Adhesive followed with GypSorb Ready Mix Finishing Compound. One set for both installation steps of gypsum joint treatment.
It couldn’t be much simpler.
• Quick, cost-effective work
• No need to mix the filler
• High joint strengths
• No cracking
• Even consistency of the filler material in the bag
• Perfect, joint-less appearance
Material
GypSorb Ready Mix is a plastic-bonded material in accordance with DIN EN 13963/Type 4A which hardens on air drying.
Application Range
GypSorb Ready Mix Joint Adhesive and GypSorb Ready Mix Finishing Compound are specially made for GypSorb perforated panel joints. They are part of the GypSorb Ready Mix Set used in the Joint Adhesive Technique.
Substrate Properties
The substrate must be clean, dry and free from frost and dust.
The panel edges must be primed using GypSorb neutral primer. Panel edges already primed during the manufacturing process do not require further priming.
• No mixing
• Easy to sand
• Low weight, specifically for ceiling work
• Quick tool cleaning
Processing
GypSorb Ready Mix is applied to the seams using the GypSorb Ready Mix Set after panels are installed.
After approximately 1 hour, use the GypSorb scraper to remove excess filler from the joints, leaving them just slightly under filled. See illustrations
Any excess filler should then be sanded off once dry (drying time depends on environmental conditions) to leave the joint flush with the panel surface.
Finishing Work
Tools and equipment should be cleaned with water immediately after using GypSorb Ready Mix.
Important
Do not use GypSorb Ready Mix at temps below + 5 °C.
Material which has already hardened (dried) should no longer be used or thinned by adding water.
Subsequent coating work may only be carried out once the GypSorb Ready Mix is completely dry.
Values given in this product data sheet solely describe the performance characteristics of our products. GypSorb Systems also have far-reaching structural-physical and static properties, which can be found in our system documentation on our website at www.gypsorb.com/technical-info (e.g. Institut Bauen und Umwelt).
GypSorb Ready Mix Joint Adhesive Mix
GypSorb Ready Mix Joint Adhesive and GypSorb Ready Mix Finishing Compound are the new, ready-to-use, joint filling compounds developed to facilitate installation and finishing of GypSorb Sonus and Strata panels. In addition to the significant saving in time and increased efficiency achieved by eliminating numerous application steps associated with the traditional joint bonding (mixing, cleaning bucket), GypSorb Ready Mix keeps the worksite cleaner.
Implementation of gypsum joint treatment
GypSorb Ready Mix compounds are used with the GypSorb Ready Mix Kit. No cleaning is required between applications (with the exception of the nozzle).
1. 1 GypSorb Ready Mix gun
2. 2 GypSorb Ready Mix adapter caps
3. 3 GypSorb Ready Mix adhesive joint nozzles
4. 3 GypSorb Ready Mix finishing compound nozzles
5. 1 GypSorb Ready Mix cleaning brush
6. 1 GypSorb Ready Mix nozzle cleaning brush
7. 1 GypSorb screw head alignment template
8. 1 GypSorb Ready Mix compound scrapper
9. GypSorb Joint Adhesive Tube*
10. GypSorb Finishing Compound Tube*
*Tubes not in kits
Process
• Flush-scraping joints after 1 hour
• Sanding after 12 to 24 hour (depending on humidity)
Characteristics
Application Temperature
5 to 35°C
Storage
6 months (sausage pack closed) away from frost
Color
white
Consumption
Each GypSorb Ready Mix insert will cover between 75 to 86 s.f. (7-8 M2) of GypSorb Sonus or Strata panels depending on the module size. Each carton of GypSorb Ready Mix contains 12 inserts.
Features
• Easy and quick to apply
• No mixing, no cleaning
• No shrinkage
Installation Notes for GypSorb Ceilings
Sub-Structure
• Base profiles: GypSorb Sonus/Stratum ceiling profiles
• Supporting profiles: GypSorb Strata ceiling profiles
• Hangers: Nonius hangers
• Profile connectors: GypSorb crossover fast connectors
Paneling
• GypSorb Sonus 6/18 R, 8/18 R, 10/23 R, 12/25 R, 15/30 R, 8-12/50 R,
12-20/66 R, 8-15-20 R, 8-15-20 super R, 12-20-35 R, 8/18 Q, 12/25 Q
• GypSorb Stratum 6/18 R, 8/18 R, 8-15-20 super R, 8/18 Q, 12/25 Q
• GypSorb Strata 8/18 R, 12/25 Q
* Other perforation patterns on inquiry
Mineral Wool Layer
• In the area above the suspended ceiling, depending on requirements.
Installation
• Mount and align the sub-structure comprising base and supporting profiles so that the GypSorb panels can be fastened at right angles to the supporting profiles. A supporting profile should always be located at the transverse joints of the boards.
• The GypSorb panels should be fastened into place using GypSorb 3.5 x 30 mm perforated panel screws inserted at intervals ≤ 170 mm; always fasten the transverse edges of the GypSorb panels first, then the
long edges.
• Any slight unevenness in the surface under the boards can be compensated by loosening the screws slightly.
For more details, watch our videos at
www.gypsorb.com/technical-info
Board Mounting
Mount the first board in the center of the room. Use an alignment line or preferably a fixed edge guide to ensure the board is properly aligned before screwing it into place.
Graphic below applies to rooms up to about 1614 sq ft
• 1st panel row: Start application in the room center
• Remaining panel rows: Install parallel to 1st row
Work outwards from the centre of the room in a star pattern when mounting subsequent boards, making sure that they are all laid in the same direction (see markings on the ends and lettering on the long edges of the boards).
Tube loading instructions for GypSorb Ready Mix Joint Adhesives
Note: Board weight + sub-structure + 20 mm mineral wool layer < 15 kg/m2 (0.15 kN/m2). Additional layers will increase the total surface weight of the ceiling and may result in classification in the load class up to 0.30 kN/m2. 1) Hanger load capacity class 0.40 kN
Insert the bag of GypSorb Joint Adhesive or Finishing Compound into the pistol tube.
Attach the GypSorb Ready Mix adhesive or finishing nozzle first, then the ring onto the end of the cartridge tube.
Screw the ring on tightly. The special GypSorb Ready Mix Adapter will pierce the end of the bag once sufficient pressure has been built up via the trigger of the pistol.
This eliminates the need to cut the bag.
The special shape of the GypSorb Ready Mix adhesive joint nozzle ensures even application of adhesive to the panel edges.
Processing Instructions For Adhesive Joints
Preparation
Use a hand held sander to sand off/bevel the panel edges to 45°, 1mm in, 1mm down. This step must be carried out on all panel edges before the panels are installed.
Panel Alignment
The panels should be butt joined, ensuring that the perforation pattern is correctly aligned horizontally and diagonally. This creates a strong joint between 0.5 – 1 mm in width.
Use the alignment tool that comes with GypSorb Installation Kit to ensure that the panels are properlyaligned and check the alignment before screwing them into place along the perforation rows by using visual and level review (straight and diagonal). Also check to be flush and co-planer with a straight edge at various locations along the joints. Minor adjustments can be made by backing screws out.
Cleaning Joints
Note: Water is not suitable for binding dust as it increases the likelihood of crack formation.
1. Clean the joints of dust deposits in the joints after finishing attachment of the boards with a dry brush.
2. Prime with a quality primer if necessary (e.g. in case of high dust formation during board application).
Once you have confirmed the panels are all correctly aligned with a visual check of the hole/perforation alignment, you can fill the joints generously and completely so that the filler just starts to exude from the back side of the panel.
Once the GypSorb Ready Mix has begun to harden, (typically 45-60 minutes) remove any excess filler carefully using the GypSorb scraper and then pass the scraper back over the joints in the opposite direction to smooth the seam surfaces.
Using your tip, go back over the joints and gently compress the GypSorb Ready Mix Joint Filler into the joints. This will create a small grooved indentation for the GypSorb Ready Mix Finishing
Compound to fill in. Allow the filler to fully set (12 to 24 hours) before applying GypSorb Ready Mix Finishing Compound.
Optional Taping Step
Mask off each side of the joint using low tack painters tape. This will help create a cleaner and smoother next step with less GypSorb Ready Mix Finishing Compound being used.
Skim over the newly taped off joints using a thin coat of our GypSorb Ready Mix Finishing Compound. Make sure to NOT fill in any of the holes/perforations. The taping step helps to keep the filler out of the holes/perforations.
After you apply the thin GypSorb Ready Mix Finishing Compound to the joints you can remove the tape from each side of your seems. Be careful to not be too aggressive as you can damage the panel facing material and create more work trying to patch the flaws.
Fill screw heads with GypSorb Ready Mix Finishing Compound using the screw trowel that comes with the GypSorb Installation Kit.
Using the installation tool will help to keep the compound in the small location and from wasting finishing compound and creating additional smoothing work. Sand off excess filler compound smoothly and evenly after hardening.
Once your GypSorb Ready Mix Finishing Compound has fully dried, you can lightly sand the seems and screw heads. Being careful to not sand to aggressively and only in the direction of the seems.
GypSorb Ready Mix Joint Compound and full GypSorb panels must be free of dust and primed prior to final painting. Use a low nap -3/8” roller using a dry roll method WITHOUT overloading the roller with primer or paint.
Note: Use a short pile lambswool roller to ensure that paint does not penetrate into the perforations and affect the acoustical performance of the fleece.
Note: Gypsum board surfaces that have constantly been exposed to light without any protection can cause yellowing after coating. Recommendation: A trial coat is recommended that will extend across several boards including all joints. Yellowing can, however, be successfully avoided only by using a special primer.
Corner Treatment
GypSorb can be corner fit similar to typical gypsum drywall boards. It is highly recommended that you fill the corner perforations before the corner bead tape and finish mud is applied.