Key points of seamless stone splicing process and steps

Natural stone is widely used as a paving material, and its noble, elegant, and eye-catching decorative effects are deeply loved by people.
The maintenance system of stone materials includes continuously improving processes such as waxing and crystal surface treatment, which can ensure the brightness of the stone surface.

 The seamless treatment of stone, called seamless grinding treatment, refers to filling the gaps between adjacent paved stone slabs with a special sealing agent with a color similar to the stone slab, and then using professional machinery and technology to grind and polish them.

After being processed in this way, the stone slab will present a large, undivided stone aesthetic

#Seamless treatment of stone#

01
What is seamless stone processing
The so-called seamless processing of stone materials refers to the use of special techniques to process the joints of stone paving to achieve a visually seamless effect.
02
Why do we need to do seamless stone processing
① It can improve the overall decoration level.
② Avoid the accumulation of dirt and dirt at the joint of stone material for future cleaning.
03
National Quality Standards
① There are no half seams, broken seams, or black seams, and there are no shadows on both sides of the seam opening. The overall effect is visually seamless at 2 meters.
② There is no significant color difference between the resin color and the stone surface, and the seam connection is natural and perfect.
③ The lines of the water knife and patchwork stitching are natural and smooth, without any color mixing.
④ There is no obvious color difference or color band at the repaired area of the fracture, and the brightness of the repaired area is consistent with that of the large plate.

 04

Material selection
To ensure the effect of seamless treatment, different materials must be selected according to the requirements of the owner, and their bonding performance, flexibility, compatibility, polishing performance after polishing, shrinkage performance, anti-aging color change ability, etc. must be comprehensively considered.
Materials with strong adhesion are not easy to peel off and expose edges in the future; Materials with strong polishing properties are easy to polish after polishing, and the overall stone surface has no feeling of being divided after the crystal surface is completed; Materials with low shrinkage are not prone to collapse in the future; The material with strong anti-aging color change ability is not easy to color change at the seam in the future.
05
Key points of operation
① The seam should not be too large, and the thickness of the seam should not exceed 0.3, otherwise it is difficult to achieve the seamless effect specified in the national standard.
② After cutting the seam with a cutting blade, the marble and granite must be cleaned on both sides of the seam with a brand new artistic blade, otherwise black seams will appear after the construction is completed.
③ The ratio of seamless adhesive and curing agent must be moderate and evenly mixed, otherwise, the seamless adhesive will not dry and half seam will appear after construction.
④ When filling the seamless adhesive, it can only be pulled back and forth once, and the back and forth pull will cause half seams to appear due to the shrinkage of the seamless adhesive after drying and curing.
⑤ When conducting seamless filling, care and meticulousness must be taken. At the joints of different colored stone materials, they must be ‘exactly right’, no more or less, otherwise, defects will be left after the construction is completed!
⑥ When conducting seamless filling, the resin color must mainly be dark stone. Otherwise, it will cause seamless effect defects due to the difficulty in modulating the light gum hue.
⑦ Special stone materials (such as Yashi White, Jazz White, Fish Maw White, Dahua White, Slavic White, etc.) must be coated with corresponding stone anti fouling agents before seamless filling. Otherwise, the oily substances in the resin will seep into both sides of the stone seam, causing the construction to end and the seam to appear gray and dark.
⑧ Quartz stone and microcrystalline stone cannot be slotted with inferior cutting pieces with high iron brightness, otherwise, the construction will appear dark after completion.

 #Grinding and leveling of stone cutting edges#

01

02
Why do we need to do stone cutting and leveling
① It can improve the overall decoration level.
② Convenient for future maintenance of stone materials
03
Standardize the protection of process finished products
Inspect the paved stone floor – Report to Party A for filing – Tailor treatment – Local polishing and leveling – Joint cleaning treatment – Caulking treatment – Initial grinding treatment (No. 30-50) – Holes Fracture repair treatment (visual diameter greater than 2mm or fracture repair) – Medium grinding treatment (No. 150) – Re repair treatment (visual diameter greater than 2mm or fracture repair) – Edge grinding treatment (referred to as edge repair) – Fine grinding treatment (No. 300-500-1000-3000).

04
National Quality Standards
Ground stone leveling standards:
① After the crystal surface is completed, the overall stone surface is 2m plus or minus 2cm;
② Stone joint 20cm plus or minus 0cm;
③ The overall stone surface has no obvious water waves, and the curvature of the benchmark projection is not more than 15 degrees; ④ There are no mechanical grinding marks or hidden grinding marks on the stone surface;
⑤ The width of the edge not polished shall not exceed 5 cm;
⑥ The polished and ungrounded edges are excessively smooth, with no burrs on the edges.
Wall and irregular stone leveling standards:
① At the polishing point, there are no mechanical polishing marks, joints, pits, or obvious water waves on the side view, and the brightness is consistent.
② The right angle seam lines of the corner facade are natural and smooth, with a comfortable feel and no ant holes.
③ The joint lines of the stone face chamfered seam (V-shaped) are natural and smooth; There is no obvious high or low curve.
④ Cylindrical seam without cutting edge! No cut surface! No obvious water ripples! No grooves! The brightness is consistent with the large board.
⑤ Irregular structure and line stitching without cutting edges! No cut surface! No obvious water ripples! No grooves! The brightness is consistent with the marking!
05
Key points of operation
① Before leveling and grinding the ground, local treatment must be carried out on areas with particularly high cutting edges. Otherwise, it will affect the overall flatness.
② Try to use equipment with a larger working surface as much as possible. Otherwise, it will affect the overall flatness.
③ It must be ground step by step and carefully, and cannot be skipped. Otherwise, there will be grinding marks or dark grinding marks.
④ Do not use an angle grinder to “pick” the wall or floor. Otherwise, the water waves after the crystal surface is completed are very obvious.
⑤ After rough grinding, edge trimming must be carried out. Otherwise, rough edges may occur.
⑥ Soft stone materials (such as wood fossils, wood grain stones, etc.) must be dried using a dry grinding system as much as possible, otherwise they are prone to alkali formation.

#Damage repair# 01 Standard specifications for stone restoration ① The color of the repaired area is similar to the texture of the large board, and there is no color difference when viewed at 2 meters. ② The brightness of the repaired area is consistent with that of the unrepaired area. ③ The height difference of the flatness at the repair site is 20cm plus or minus 0mm. ④ High temperature baking at the repair area will not peel off. 02 Material requirements ① High resin content ② Strong bonding ability ③ Low shrinkage after curing 03 Processing points ① If the damage is obvious, a solid repair adhesive with similar modulation color must be used for repair. ② If the damage is not obvious, liquid repair glue must be used for batch repair; ③ If there is a linear damage, the color of the stone texture must be determined first, and then a glue close to the color of the stone texture must be selected for repair. ④ If there are many holes, it is necessary to consider water adhesive coating or light curing repair. ⑤ If the stone material contains crystals, chemical materials such as quartz, mica, or glass powder copper powder must be added to the repair adhesive in an appropriate amount (depending on the quality of the stone)