Rubber Granules for Synthetic Bowls Greens | Resin Base + Surface Spread | Bowls Court
Bowls Court is Prismi’s specialist range of rubber granules for the construction and maintenance of synthetic resin bowls greens, manufactured in Italy since 1990. The system consists of two distinct products with complementary functions.
Rubber Sand (particle size 0.5–1.5 mm): SBR 1502 vulcanized rubber granules, in-mass colored in white, grey or amber. Mixed with acrylic resins to form the compact, durable base mat of the bowls green.
Spread (particle size 0.3–0.6 mm): ultra-fine SBR 1502 granules, in-mass colored in the same three colors. Applied as a loose surface dressing on the resin mat and re-dressed during play, exactly like natural sand on traditional greens.
The main advantage of Spread over silica sand is that it does not abrade the surface of bowls during play, preserving the finish and treatment of the bowls over time and reducing maintenance costs.
Both products are SBR 1502 rubber, 58–62 Shore A hardness, absolute density 1.13 g/cm³, particle size analysis per EN 933-1.
Spread surface dressing is available to buy online in 25 kg bags and Big Bag. Rubber Sand base is available on direct quote from the manufacturer.
How the Bowls Court system works | resin base and surface dressing explained
A synthetic resin bowls green is built in two phases, each corresponding to a product in the Bowls Court range.
Phase 1 : Base with Rubber Sand: the 0.5–1.5 mm SBR granule is blended with acrylic resin and cast in place to form the solid, weatherproof base mat of the green. The resin bonds the granules into a firm, flat surface. The color, white, grey or amber , sets the final appearance of the green.
Phase 2 : Surface dressing with Spread: once the resin mat has cured, the ultra-fine Spread granule (0.3–0.6 mm) is distributed evenly across the surface. The Spread is loose and unfixed, and behaves during play exactly like natural sand on traditional greens: players re-dress it between frames using a brush or cloth. Unlike silica sand, the SBR rubber granule does not abrade the surface of bowls during contact.
Maintenance: the Spread is the consumable component that depletes gradually with play and must be replenished periodically. It is available for direct online purchase from Prismi.
Applications | synthetic resin bowls greens with Bowls Court rubber
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- bowls club with resin amber
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- gray resin bowls alley
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- bowl with amber sprinkle
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- bowls alley with sand-colored dusting
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- bowls game with pouncing on field
Managing a bowls club?
Available in 3 colors (white, grey, amber) — 25 kg bags and Big Bag.
Building or renovating a synthetic bowls green?
Contact us for a Rubber Sand base + acrylic resin quote.
Bowls Court range | base granules and surface spread products
Rubber Sand | SBR base granules for acrylic resin bowls green mat (0.5–1.5 mm)
Rubber Sand White | white SBR granule for bowls green resin base
Rubber Sand White is Prismi’s white in-mass vulcanized SBR 1502 rubber granule for the acrylic resin base mat of synthetic bowls greens. Particle size 0.5–1.5 mm. Hardness 58–62 Shore A. Absolute density 1.13 g/cm³. Quantity: 4.5 kg/m² per 10 mm. Light stability 95%, abrasion resistance 97%. EN 933-1. Technical data sheet available.
Rubber Sand Grey | grey SBR granule for bowls green resin base
Rubber Sand Grey is Prismi’s grey in-mass vulcanized SBR 1502 rubber granule for the acrylic resin base mat of synthetic bowls greens. Particle size 0.5–1.5 mm. Hardness 58–62 Shore A. Absolute density 1.13 g/cm³. Quantity: 4.5 kg/m² per 10 mm. Light stability 90%, abrasion resistance 90%. EN 933-1. Technical data sheet available.
Rubber Sand Amber — amber SBR granule for bowls green resin base
Rubber Sand Amber is Prismi’s amber (sand-tone) in-mass vulcanized SBR 1502 rubber granule for the acrylic resin base mat of synthetic bowls greens. The amber color replicates the appearance of traditional natural sand greens. Particle size 0.5–1.5 mm. Hardness 58–62 Shore A. Absolute density 1.13 g/cm³. Quantity: 4.5 kg/m² per 10 mm. Light stability 95%, abrasion resistance 97%. EN 933-1. Technical data sheet available.
Spread | ultra-fine SBR surface dressing for synthetic bowls greens (0.3–0.6 mm)
Spread is the loose surface dressing applied over the resin mat. It is available for direct online purchase for periodic replenishment.
Spread White — white SBR surface dressing for synthetic bowls greens
Spread White is Prismi’s ultra-fine white in-mass vulcanized SBR 1502 rubber granule for surface dressing of synthetic resin bowls greens. Particle size 0.3–0.6 mm (finer than Rubber Sand base). Hardness 58–62 Shore A. Absolute density 1.13 g/cm³. Does not abrade bowls during play. Re-dressed with a brush between frames, like natural sand. Available online in 25 kg bags. Light stability 90%, abrasion resistance 90%. Data sheet available.
Spread Grey — grey SBR surface dressing for synthetic bowls greens
Spread Grey is Prismi’s ultra-fine grey in-mass vulcanized SBR 1502 rubber granule for surface dressing of synthetic resin bowls greens. Particle size 0.3–0.6 mm. Hardness 58–62 Shore A. Absolute density 1.13 g/cm³. Does not abrade bowls during play. Re-dressed with a brush between frames. Available online in 25 kg bags. Light stability 95%, abrasion resistance 97%. Data sheet available.
Spread Amber — amber SBR surface dressing for synthetic bowls greens
Spread Amber is Prismi’s ultra-fine amber in-mass vulcanized SBR 1502 rubber granule for surface dressing of synthetic resin bowls greens. Particle size 0.3–0.6 mm. Amber tone replicates the appearance of natural sand greens. Does not abrade bowls during play. Available online in 25 kg bags. Light stability 90%, abrasion resistance 90%. Data sheet available.
Need to replenish your bowls green surface dressing?
Buy Spread Amber, Grey or White online in 25 kg bags or Big Bag — direct from the manufacturer
Are you a company and need to build a court?
For new green construction, contact us for a quote.
Frequently asked questions about Bowls Court rubber granules
What is the difference between Rubber Sand and Spread for synthetic bowls greens?
The Bowls Court range consists of two distinct product families with different functions. Rubber Sand (0.5–1.5 mm particle size) is the base product: it is blended with acrylic resin and cast in place to form the permanent, compact base mat of the green. Spread (0.3–0.6 mm) is the ultra-fine surface dressing: it is applied loose over the cured resin mat and re-dressed during play using a brush, exactly as players manage natural sand on traditional greens. Both come in white, grey and amber, matched to ensure visual consistency between the base mat and the surface dressing color.
Why use SBR rubber spread instead of sand on a synthetic bowls green?
The main advantage of Spread SBR over silica sand is bowls protection: vulcanized SBR rubber does not abrade the surface finish of bowls during rolling and impact. Silica sand, by contrast, is made of angular particles that progressively wear the coating, paint or anodizing of bowls, reducing their playing performance and lifespan. Additionally, SBR rubber does not compact when wet, does not produce airborne dust during play and is not easily displaced by wind or rain, unlike sand which can be washed off the green after heavy rainfall.
How is the Spread surface dressing maintained on a synthetic bowls green?
Spread behaves like natural sand: it should be re-dressed with a brush or cloth before and during play to maintain an even surface. Over time, small amounts are lost through wear, wind or cleaning routines and must be replenished. Replenishment frequency depends on the intensity of use of the green and local weather conditions. For bowling clubs with daily activity, it is advisable to keep a stock of Spread on site. Spread Amber, Grey and White is available to buy online directly from Prismi in 25 kg bags for regular replenishment.
How much Spread is needed for a synthetic bowls green?
As a technical reference from the data sheet, Spread consumption is 4.5 kg per m² per 10 mm of applied depth (±10%). In practice, the Spread is applied as a thin loose layer (typically 2–5 mm) over the resin mat, so consumption at first installation is well below this figure. Replenishment quantities are even lower, representing only the fraction lost with use. Contact us with the dimensions of your green for an accurate first-installation and replenishment calculation.
Do Prismi Bowls Court granules come from recycled tyres?
No. Both Rubber Sand and Spread are produced from pre-consumer secondary SBR 1502 rubber raw materials sourced from industrial production waste, not from recycled post-consumer tyres (ELT). This guarantees high purity: impurities below 0.001% by weight, no steel wire inclusions and consistent granulometric uniformity. The rubber is in-mass colored: color is distributed throughout the entire granule cross-section, not applied as a surface coating, ensuring superior chromatic stability over time. Manufactured in Monteprandone (Ascoli Piceno, Italy) since 1990.