<p><span>Z Counterform GFRZ Pro is a pre-blended, all in one, high performance concrete mix designed for casting countertops, furniture, wall panels and more. It offers the very best blend of white Portland cement, white sands, polymer, defoamer, shrink reducer and other ingredients to ensure a strong, pinhole free casting. Impressive compression and flexural strength allows you to comfortably cast as thin as 3/4 without concern for cracking, curling or deformation. GRFZ Pro is highly versatile and allows for many application techniques including standard GFRC and SCC castings.</span></p><p><strong>Sold Individually here.<br/><br/></strong></p><p>DOWNLOAD TECHNICAL DATA SHEET<br/><br/></p><p><strong>Intended For Professional Use Only</strong></p><p>The application techniques required to use this product are more involved than our wet-cast White Countertop Mix. Please watch the full instructional video below before purchasing this product.</p><p><br/><em>Watch the full instructional video below to see the application method and learn many of the skills required when using this product.</em></p> <p></p><h2>GFRZ Pro Calculator</h2><p>Use the calculator below to estimate how much concrete, glass fiber and water reducer would be needed for a typical countertop application. Click the "?" icon next to each input field to see a diagram explaining each measurement.</p><p>Countertop Area: <span>?</span><br/>Square InchesSquare Feet</p><p>Main Countertop Thickness (inches): <span>?</span><br/> </p><p>Length of Apron Edge: <span>?</span><br/>InchesFeet</p><p>Apron Height (inches): <span>?</span><br/> </p><p>Apron Thickness (inches): <span>?</span><br/> </p><p>Calculate</p>function openLightbox(imageUrl, textContent) { document.getElementById("lightbox-img").src = imageUrl; document.getElementById("lightbox-text").textContent = textContent; document.getElementById("lightbox").style.display = "flex"; } function closeLightbox() { document.getElementById("lightbox").style.display = "none"; document.getElementById("lightbox-img").src = ""; document.getElementById("lightbox-text").textContent = ""; } function calculate() { const area = parseFloat(document.getElementById('area').value); const areaUnit = document.getElementById('areaUnit').value; const mainThickness = parseFloat(document.getElementById('mainThickness').value); const edgeLength = parseFloat(document.getElementById('edgeLength').value) || 0; const edgeUnit = document.getElementById('edgeUnit').value; const apronHeight = parseFloat(document.getElementById('apronHeight').value) || 0; const apronThickness = parseFloat(document.getElementById('apronThickness').value) || 0; if (isNaN(area) || isNaN(mainThickness)) { alert('Please fill in the required fields (area and main thickness).'); return; } // Convert area to square inches const areaInSqIn = areaUnit === 'sqft' ? area * 144 : area; const areaInSqFt = areaInSqIn / 144; // Convert edge length to inches const edgeInInches = edgeUnit === 'ft' ? edgeLength * 12 : edgeLength; // Face coat area = area + edge surface area (vertical faces) const edgeAreaInSqIn = edgeInInches * apronHeight; const totalFaceAreaInSqFt = (areaInSqIn + edgeAreaInSqIn) / 144; const faceCoatBags = Math.ceil(totalFaceAreaInSqFt / 30); // Backer coat volume in cubic inches = main slab + apron volume const mainVolumeIn3 = areaInSqIn * mainThickness; const apronVolumeIn3 = edgeInInches * apronHeight * apronThickness; const totalVolumeIn3 = mainVolumeIn3 + apronVolumeIn3; const totalVolumeFt3 = totalVolumeIn3 / 1728; const backerCoatBags = Math.ceil(totalVolumeFt3 / 0.41); const totalBags = faceCoatBags + backerCoatBags; const fiberLbs = (backerCoatBags * 1.35).toFixed(2); const waterReducerMl = (faceCoatBags * 25) + (backerCoatBags * 10); document.getElementById('result').innerHTML = ` <p>Total Bags of Concrete: ${totalBags}</p> <p> - Face Coat: ${faceCoatBags} bags</p> <p> - Backer Coat: ${backerCoatBags} bags</p> <p>Glass Fiber Needed: ${fiberLbs} lbs</p> <p>Total Water Reducer Needed: approx. ${waterReducerMl} ml</p> `; }
Z Counterform GFRZ Pro is a pre-blended, all in one, high performance concrete mix designed for casting countertops, furniture, wall panels and more. It offers the very best blend of white Portland cement, white sands, polymer, defoamer, shrink reducer and other ingredients to ensure a strong, pinhole free casting. Impressive compression and flexural strength allows you to comfortably cast as thin as 3/4 without concern for cracking, curling or deformation. GRFZ Pro is highly versatile and allows for many application techniques including standard GFRC and SCC castings.
Sold Individually here.
DOWNLOAD TECHNICAL DATA SHEET
Intended For Professional Use Only
The application techniques required to use this product are more involved than our wet-cast White Countertop Mix. Please watch the full instructional video below before purchasing this product.
Watch the full instructional video below to see the application method and learn many of the skills required when using this product.
Use the calculator below to estimate how much concrete, glass fiber and water reducer would be needed for a typical countertop application. Click the “?” icon next to each input field to see a diagram explaining each measurement.
Countertop Area: ?
Square InchesSquare Feet
Main Countertop Thickness (inches): ?
Length of Apron Edge: ?
InchesFeet
Apron Height (inches): ?
Apron Thickness (inches): ?
Calculate
function openLightbox(imageUrl, textContent) { document.getElementById(“lightbox-img”).src = imageUrl; document.getElementById(“lightbox-text”).textContent = textContent; document.getElementById(“lightbox”).style.display = “flex”; } function closeLightbox() { document.getElementById(“lightbox”).style.display = “none”; document.getElementById(“lightbox-img”).src = “”; document.getElementById(“lightbox-text”).textContent = “”; } function calculate() { const area = parseFloat(document.getElementById(‘area’).value); const areaUnit = document.getElementById(‘areaUnit’).value; const mainThickness = parseFloat(document.getElementById(‘mainThickness’).value); const edgeLength = parseFloat(document.getElementById(‘edgeLength’).value) || 0; const edgeUnit = document.getElementById(‘edgeUnit’).value; const apronHeight = parseFloat(document.getElementById(‘apronHeight’).value) || 0; const apronThickness = parseFloat(document.getElementById(‘apronThickness’).value) || 0; if (isNaN(area) || isNaN(mainThickness)) { alert(‘Please fill in the required fields (area and main thickness).’); return; } // Convert area to square inches const areaInSqIn = areaUnit === ‘sqft’ ? area * 144 : area; const areaInSqFt = areaInSqIn / 144; // Convert edge length to inches const edgeInInches = edgeUnit === ‘ft’ ? edgeLength * 12 : edgeLength; // Face coat area = area + edge surface area (vertical faces) const edgeAreaInSqIn = edgeInInches * apronHeight; const totalFaceAreaInSqFt = (areaInSqIn + edgeAreaInSqIn) / 144; const faceCoatBags = Math.ceil(totalFaceAreaInSqFt / 30); // Backer coat volume in cubic inches = main slab + apron volume const mainVolumeIn3 = areaInSqIn * mainThickness; const apronVolumeIn3 = edgeInInches * apronHeight * apronThickness; const totalVolumeIn3 = mainVolumeIn3 + apronVolumeIn3; const totalVolumeFt3 = totalVolumeIn3 / 1728; const backerCoatBags = Math.ceil(totalVolumeFt3 / 0.41); const totalBags = faceCoatBags + backerCoatBags; const fiberLbs = (backerCoatBags * 1.35).toFixed(2); const waterReducerMl = (faceCoatBags * 25) + (backerCoatBags * 10); document.getElementById(‘result’).innerHTML = `
Total Bags of Concrete: ${totalBags}
– Face Coat: ${faceCoatBags} bags
– Backer Coat: ${backerCoatBags} bags
Glass Fiber Needed: ${fiberLbs} lbs
Total Water Reducer Needed: approx. ${waterReducerMl} ml
`; }
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