By The Roofing Brief Team. Last reviewed: October 2026.
APOC roof coating is a line of liquid-applied roof coatings made by Gardner-Gibson, Inc. of Tampa, Florida (an ICP Group company), sold as white elastomeric acrylic (241, 243, 246, 252), 100% silicone (576), aluminum (207, 208, 211, 212) and black asphalt (200, 202, 301) formulas. The product number sets the chemistry, the coverage rate and the warranty: per APOC’s own data sheets, 241 carries a 7-year product warranty, 243 a 10-year, 246 a 12-year, and 576 silicone a warranty for the life of the existing roof. Match the number to your roof surface and to whether the roof holds water for more than 48 hours, and the shelf choice is made.
APOC’s white acrylic data sheets all say “Do not use on shingle roofs” and require positive drainage, while the APOC 576 technical data sheet is the one written for roofs at 1:12 pitch or less with ponding water. Every spec on this page is taken from the C25 revision of APOC’s technical data sheets, linked where each product first appears.
What is APOC roof coating and who makes it?
APOC is the professional and retail roof coating brand of Gardner-Gibson, Inc., 4161 East 7th Avenue, Tampa, FL, and the apoc.com site footer credits ICP Group. The roofing range on apoc.com lists 7 white elastomeric coatings (241, 243, 246, 247, 248, 252, 258), 5 silicone products (576, 585, 585 HB, 586, 587), aluminum coatings from the 2-lb APOC 207 Silver Guard to the 3-lb APOC 211 and 212, and asphalt coatings for roofs and foundations. All are rolled, brushed or sprayed over an existing roof; the airless spray setting on the acrylic and silicone sheets is 2,000 to 3,000 PSI with a .030 to .041 tip.
The APOC 241, 243, 246 and 576 pails are stocked at Lowe’s under those numbers, and Lowe’s product titles repeat the warranty (for example “APOC 243 4.75-gallon White Elastomeric Reflective Roof Coating, 10-year limited Warranty”). The lineup splits into four chemistries, and picking the chemistry first narrows the choice fast. For the wider category and how each chemistry behaves, see our guide to roof coating types and cost.
The APOC product lines, decoded
APOC groups its roof coatings into four chemistry families. The white acrylics (241 to 258) and the 576 silicone restore aging low-slope roofs and reflect 85% to 90% of sunlight per their data sheets. APOC 208 aluminum reflects 58% to 62% (ASTM C-523, per its sheet), and the black asphalt grades are sold as waterproofing base coats and foundation dampproofing. The table maps the common product numbers to chemistry, best use and the warranty printed on each sheet.
| APOC family | Common products | Chemistry | Best for | Warranty tier |
|---|---|---|---|---|
| Elastomeric white (Energy-Armor at the top end) | APOC 241, 243, 246, 252 Energy-Armor Sunwhite | Acrylic elastomeric (243 and 246 siliconized; 252 acrylic modified with polyurethane) | Aged metal, mod-bit, BUR, concrete, tile, aged TPO and EPDM with positive drainage | 241: 7 years; 243: 10 years; 246: 12 years; 252: 1 year base, extended terms if registered within 60 days |
| Silicone | APOC 576; 585 Armor Flex | 100% silicone, 97% solids by volume (576) | Low-slope roofs at 1:12 or less with ponding water | 576: lifetime of the existing roof, roof in sound condition |
| Aluminum (Silver Guard and premium) | APOC 207, 208, 211, 212 | Asphalt-based aluminum (207 and 211 non-fibered, 208 and 212 fibered; 207 is a 2-lb, 211 and 212 are 3-lb) | BUR and metal roofs needing UV protection, not shingles, tile, EPDM or TPO | 208: 7 years |
| Asphalt (Rainshield and water-based) | APOC 200, 202, 301 | Solvent asphalt (200 non-fibered, 202 fibered); water-based asphalt emulsion (301, ASTM D449) | BUR, flashings and foundations; base coat under a reflective top coat | 202 and 301: 1 year |
Two rules cut through the numbers. In the white acrylic family, a higher number buys a longer warranty and more film per coat: APOC 241 is 36% solids by volume with a 7-year warranty, APOC 243 is 52% solids with a 10-year warranty, and APOC 246 adds dirt pick-up resistance and a 12-year warranty. In the silicone family, APOC 576 is the 100% silicone grade that is rain-safe in 15 minutes at 70°F and 50% relative humidity.
APOC 241 vs 243 vs 246: the white elastomeric tiers compared
APOC 241 vs 243 is the most common shelf decision, and the data sheets show three measurable differences: 243 is siliconized, it lays down 44% more solids per gallon (52% vs 36% by volume), and it carries 10 years instead of 7. Both list the same 90 sq ft per gallon per coat and the same two-coat minimum, so the 243 film is thicker at the same coverage. The dry-film column below is our calculation from each sheet’s coverage and solids: 1 gallon spread over 1,604 sq ft is 1 mil wet.
| Spec | APOC 241 | APOC 243 | APOC 246 | APOC 252 Sunwhite | Source |
|---|---|---|---|---|---|
| Product warranty | 7 years | 10 years | 12 years | 1 year, extended if registered | Each product’s C25 data sheet |
| Solids by volume | 36% | 52% | 47% | 54% | Data sheets |
| Coverage per coat | 90 sq ft/gal | 90 sq ft/gal | 90 sq ft/gal | 1.5 gal per 100 sq ft (about 67 sq ft/gal) | Data sheets |
| Dry film, two coats (calculated) | about 12.8 mils | about 18.5 mils | about 16.8 mils | about 26 mils | 1,604 / coverage x solids x 2 |
| Initial reflectivity / SRI | 85% / SRI 107 | 90% / SRI 112 | 0.87 initial, 0.76 at 3 years / SRI 110 | 0.90 / SRI 115 | Data sheets |
| Elongation | 250% | 320% | 275% | 463% | Data sheets |
| Minimum application temperature | Above 50°F for 24 hours, max 100°F | Above 55°F for 24 hours, max 110°F | Above 60°F, max 110°F | 55°F and rising, max 110°F | Data sheets |
| Standard cited | CRRC rated | ASTM D6083, CRRC rated | ASTM D6083, Title 24, CRRC rated | ASTM C1549 reflectance test | Data sheets |
Pick by the warranty you need and the temperature you can work in. APOC 241 can go on at 50°F, which suits a cool-season patch-and-coat on a metal shed. APOC 243 is the better buy when the roof will see long wet periods, because the siliconized film is 44% thicker per coat. APOC 246 is for owners who want reflectivity to hold: its sheet publishes a 3-year aged value (0.76) that 241 and 243 do not. APOC 252 Energy-Armor Sunwhite is the contractor grade, sold in 5-gallon pails, 55-gallon drums and 275-gallon totes.
Which APOC coating for your roof type?
Match the coating to your roof surface, because the warranty on every APOC sheet requires application “for the intended use as stated on the label.” The decision table puts each sheet’s substrate list and drainage limit in one place. Our ranking of the best aluminum roof coatings compares aluminum grades across brands.
| If your roof is | Use | Threshold or rule from the data sheet |
|---|---|---|
| Flat or 1:12 or less, water stands more than 48 hours | APOC 576 silicone, one coat | 576 is rated for ponding water; the acrylics require that roofs not hold ponding water longer than 48 hours |
| Aged EPDM, TPO, mod-bit or BUR with positive drainage | APOC 243 or 246 white acrylic, two coats | The age of the surface decides whether APOC 296 Single Ply Primer is needed; test adhesion on a small area first |
| Metal roof, rusty spots | APOC 241 or 243 white, or APOC 208 aluminum | Wire-brush rust and prime with APOC 291 Rust Inhibiting Primer first |
| Black BUR or asphalt surface | APOC 202 or 301 base, then a white top coat | 301 can take a reflective coat after 7 days; APOC recommends 45 days of cure for 202; acrylics need aluminum, asphalt or tar coats to weather one summer first |
| Asphalt shingle roof | No APOC white or aluminum coating | 241, 243 and 246 sheets: “Do not use on shingle roofs”; 208 is “not recommended for use on shingles” |
| Foam (SPF) roof | A white silicone or acrylic top coat | Confirm SPF is on the product’s substrate list; see our notes on foam roof repair |
One trap on DIY jobs: plan on re-coating a cured silicone roof only with silicone, because acrylics generally do not bond to cured silicone, so a 576 roof stays a silicone roof for future re-coats. APOC’s own repair product for 576 is APOC 581 Silicone Roof Patch, not the acrylic 264 patch. For the wider decision, compare options in our best roof coating for a flat roof breakdown.
APOC 202 vs 301: solvent vs water-based black coating
APOC 202 vs 301 comes down to solvent versus water. APOC 202 Rainshield is a fibered asphalt-and-solvent coating, and APOC 301 is a water-based, low-odor asphalt emulsion that meets ASTM D449. Both coat built-up roofs and dampproof foundations, and both carry a 1-year product warranty on the sheet.
| Spec | APOC 202 Rainshield fibered | APOC 301 asphalt roof and foundation | Source |
|---|---|---|---|
| Base | Asphalt, solvent and fibers | Water-based asphalt emulsion, ASTM D449 | Data sheets |
| Application temperature | Surface 35°F to 120°F; below 50°F, store the pail at 65°F to 90°F for 24 hours first | 55°F to 110°F | Data sheets |
| Roof slope limit | Not on slopes over 1/4 in per foot | Not on TPO, PVC, EPDM, Hypalon or other single-ply | Data sheets |
| Coverage | 1.0 gal per 100 sq ft on smooth BUR; 1.0 to 1.5 on concrete or masonry | About 350 sq ft per 5 gal; two coats recommended | Data sheets |
| Wait before a reflective top coat | Minimum 45 days | 7 days | Data sheets |
| Clean-up | Not water-based (asphalt and solvent) | Water while wet; tools with paint thinner or mineral spirits | Data sheets |
Choose 301 when you want to top-coat white within a week or are working near occupied space where solvent odor matters; choose 202 when the job is a flat BUR at 1/4 in per foot or less and you are not top-coating for at least 45 days.
How much APOC roof coating do you need?
APOC’s white acrylics (241, 243, 246) are rated at about 90 sq ft per gallon per coat with two coats mandatory, so plan on about 2.2 gallons per 100 sq ft for the system. APOC 252 is heavier at 1.5 gallons per 100 sq ft per coat, 3 gallons total. APOC 576 silicone is about 71 sq ft per gallon and can go on in one coat over a surface in good condition, about 1.4 gallons per 100 sq ft.
Worked example for a 1,500 sq ft flat roof with APOC 243 in two coats: 1,500 / 90 = 16.7 gallons per coat, 33.3 gallons for two coats, which is 7.0 pails of 4.75 gallons; buy 8 to cover the detail coat APOC requires over seams and joints. The same roof in APOC 576 is 1,500 / 71 = 21.1 gallons, or 4.4 pails, so buy 5.
| Product | Coats | Gallons per 100 sq ft (system) | One 4.75-gal pail covers | Pails for 1,500 sq ft |
|---|---|---|---|---|
| APOC 241, 243 or 246 | 2 (mandatory) | 2.2 | about 214 sq ft finished | 7.0, buy 8 |
| APOC 252 Sunwhite | 2 (required) | 3.0 | about 158 sq ft finished | 9.5, buy 10 |
| APOC 576 silicone | 1 on sound surfaces | 1.4 | about 337 sq ft | 4.4, buy 5 |
| APOC 208 aluminum | Per sheet rate | 0.75 to 1.0 (metal, smooth BUR); 1.0 to 1.5 (granular) | about 475 to 633 sq ft on metal | 2.4 to 3.2, buy 3 to 4 |
Primers are bought separately when the sheet calls for one: APOC 296 Single Ply Primer on aged single-ply, APOC 291 on rusty metal, APOC 583 Armor-Base as a bleed-blocking base under 576 on asphalt, and APOC 103 Bond N’ Prime (ASTM D41) on weathered BUR. Liquid-applied systems and their coverage math are covered further in our guide to liquid applied roofing.
How to apply APOC roof coating
APOC coatings go on over a clean, dry, repaired roof, and the data sheets set the timing: no rain or heavy dew within 24 hours of finishing, and for the acrylics at least 24 hours between coats. The steps below follow the 241 and 243 sheets, with the 576 silicone differences noted.
- Clean the roof. Pressure-wash with a wide fan tip so the stream does not tear the surface; clean mildew with APOC 801 Heavy Duty Roof Cleaner and rinse until dry.
- Repair and reinforce. Seal leaks and cracks with APOC 264 Elastomeric Roof Patch and polyester fabric or Incredible Fleece-Top Tape (APOC 581 Silicone Roof Patch under 576), and let the repair cure per its label.
- Prime if required. Wire-brush rusty metal and prime with APOC 291; use APOC 296 on aged single-ply when an adhesion test fails.
- Check temperature and forecast. 241 needs above 50°F for 24 hours and rising; 243 above 55°F; 576 can go on between 35°F and 120°F. Do not coat if rain or heavy dew is expected within 24 hours.
- Detail coat. Brush one coat over all seams and joints and let it dry for about 1 hour.
- First full coat. Roll with a 3/4 in nap roller or spray at 2,000 to 3,000 PSI, at about 90 sq ft per gallon for the acrylics.
- Second coat. After at least 24 hours (241, 243), apply the second coat perpendicular to the first. Full cure takes 24 to 48 hours; 576 is rain-safe in 15 minutes at 70°F and 50% humidity.
What does APOC roof coating cost?
APOC roof coating cost per sq ft is the pail price divided by the area it finishes. The table uses online listings captured on October 19, 2026 through Google Shopping, with the seller named, and the coverage from each data sheet. Prices move with seller and pack size, so treat these as a snapshot and run the same math on the price you are quoted.
| APOC product | Listing (seller, Oct 19 2026) | Price per gallon | Material cost per sq ft, full system | Source |
|---|---|---|---|---|
| APOC 202 Rainshield fibered | AP-2025, 4.75 gal, $64.99 (The Lumberyard) | about $13.68 | about $0.14 at 1.0 gal per 100 sq ft | Listing; 202 data sheet |
| APOC 301 asphalt emulsion | AP-3011, 4 x 1 gal, $53.05 to $86.36 (forgetoolsy.com, Zoro) | about $13.26 to $21.59 | about $0.38 to $0.62, two coats at 350 sq ft per 5 gal | Listings; 301 data sheet |
| APOC 241 white | AP-2411, 4 x 1 gal, $131.35 to $174.46 (Shell Lumber, Hardware and Tools) | about $32.84 to $43.62 | about $0.73 to $0.97, two coats | Listings; 241 data sheet |
| APOC 243 white | AP-2431, 4 x 1 gal, $176.80 to $220.76 (DK Hardware, Zoro) | about $44.20 to $55.19 | about $0.98 to $1.23, two coats | Listings; 243 data sheet |
| APOC 252 Sunwhite | 5 gal, $181.00 (Arbor) | about $36.20 | about $1.09, 3 gal per 100 sq ft | Listings; 252 data sheet |
| APOC 576 silicone | 4.75 gal, $398.75 (Martexplore.com); AP-5761 4 x 1 gal, $496.36 to $499.96 (R.P. Lumber, Zoro) | about $83.95 (pail) to $125 (1 gal) | about $1.18 to $1.76, one coat at 71 sq ft/gal | Listings; 576 data sheet |
Those are material-only figures for a DIY job, before primer, fabric, 264 or 581 patch and roller covers. A contractor’s price adds prep and labor on top, and a commercial silicone restoration bid is usually quoted per square foot for the full system. If you plan to hire out, our guide to vetting a roof coating contractor covers what a fair quote should include.
Is APOC roof coating any good, and where does it fall short?
APOC roof coating performs to its data sheet when the roof matches the sheet: positive drainage for the acrylics, ponding allowed only for 576, never on shingles, and two coats where two are mandatory. The published numbers are in line with the category: 243 meets ASTM D6083 for acrylic roof coatings, and 576 is listed as exceeding ASTM D6694 for silicone roof coatings, ASTM D7281 and Title 24.
- Strengths: retail availability of 241, 243, 246 and 576 at Lowe’s; white grades with published SRI values of 107 to 115 (241, 243 and 246 are listed as CRRC rated); a 576 silicone that tolerates ponding; and warranty tiers printed on each sheet from 7 years (241) to the life of the roof (576).
- Limits: the 241, 243 and 246 warranties are for material defects only, and the APOC sheets state the limited warranty does not cover labor or installation costs; the 252 and 202 sheets give 1 year unless you register within 60 days at apoc.com/pages/warranty.
- Reality check: coatings do not bridge a wet or rotted deck; if a core cut or moisture scan finds wet insulation under more than a small area, budget for flat roof replacement rather than a coating.
To keep a warranty claim alive, keep the receipt (proof of purchase is a condition on the 252 and 202 sheets), photos of the cleaned and primed roof, and the batch numbers from each pail. If you want a second ponding-tolerant silicone to price against APOC 576, see our review of SOPREMA 924, the former Tropical Roofing Products silicone.
Frequently asked questions
Is APOC roof coating any good?
APOC roof coating performs to its data sheet when the product matches the roof. APOC 243 meets ASTM D6083 for acrylic roof coatings and APOC 576 exceeds ASTM D6694 for silicone, with initial reflectivity of 85% to 90% across the white grades. Failures usually trace to skipped cleaning, a missing primer, or an acrylic used where water ponds longer than 48 hours.
What is the difference between APOC 241 and 243?
APOC 243 is siliconized, has 52% solids by volume versus 36% for 241, reflects 90% versus 85% initially, and carries a 10-year warranty versus 7 years. Both cover about 90 sq ft per gallon per coat and need two coats. 241 can be applied above 50°F, while 243 needs above 55°F.
How long does APOC roof coating last?
The product warranties on APOC’s data sheets are 7 years for 241, 10 years for 243, 12 years for 246, 7 years for 208 aluminum, and the life of the existing roof for 576 silicone, assuming the roof is in sound condition. Those terms cover material defects, not labor. Actual service life depends on film thickness, drainage and re-coating.
How many coats of APOC do I need?
APOC’s 241, 243 and 246 data sheets say two coats are mandatory for all applications, applied perpendicular to each other at least 24 hours apart, after a detail coat over seams. APOC 576 silicone can be applied in one coat at about 71 sq ft per gallon on surfaces in good condition, with rough areas recoated.
How much does a gallon of APOC coating cover?
About 90 sq ft per gallon per coat for APOC 241, 243 and 246, so one 4.75-gallon pail finishes about 214 sq ft in two coats. APOC 252 uses 1.5 gallons per 100 sq ft per coat, and APOC 576 covers about 71 sq ft per gallon in a single coat.
Can you apply APOC over shingles?
No for the white acrylics: the APOC 241, 243 and 246 data sheets say “Do not use on shingle roofs,” and the APOC 208 aluminum sheet says it is not recommended for shingles. APOC’s coatings are written for low-slope roofs, metal and aged membranes with positive drainage.
What temperature do you apply APOC roof coating at?
APOC 241 needs temperatures above 50°F for 24 hours and rising, up to 100°F; APOC 243 and 252 need above 55°F, up to 110°F; APOC 246 needs above 60°F. APOC 576 silicone can be applied between 35°F and 120°F and is rain-safe in 15 minutes at 70°F and 50% relative humidity.