Technical blog
Read our blog for more technical and practical information.
Find general explainers, contractor notes, and DIY homeowner guidance for roof rejuvenation and SoyLei materials.
WHY ROOFS AGE
Asphalt shingles usually fail one granule at a time.
Sun, heat, oxygen, rain, and freeze-thaw cycles gradually age the asphalt binder inside shingles. As the binder gets drier and more brittle, shingles lose flexibility and shed the protective granules that shield the roof surface.
APEX-1132™ targets that binder problem. Instead of acting like a paint, roof coating, or short-term color refresh, it is designed to penetrate compatible asphalt shingles and help restore the flexibility and granule hold that aging roofs lose over time.
The goal is simple: help a sound asphalt-shingle roof stay serviceable longer before replacement becomes the only practical option.
ENGINEERED SESO CHEMISTRY
Not biodiesel. Not vegetable oil. Engineered roof chemistry.
Many roof-rejuvenation products rely on simple oil softening: soy methyl ester, soy ethyl ester, biodiesel-like chemistry, or unengineered vegetable-oil blends. APEX-1132™ is different.
APEX-1132™ is powered by SESO, semi-epoxidized soybean oil. SoyLei's researchers engineered the soybean-oil chemistry so it can interact with oxidized asphalt binder and help restore durable performance from within the shingle—not just darken the surface.
APEX-1132™ brings together a combination buyers rarely see in roof maintenance: original university engineering, manufacturer-direct support, published science, patent protection, and easy ordering.
TESTED ROOF PERFORMANCE
Designed for the roof properties that matter.
A roof-shingle rejuvenator has to do more than make an old roof look darker. The meaningful questions are whether shingles can flex, keep granules attached, resist impact, and maintain safe performance under relevant tests.
Flexibility / ductility
Improved flexibilityAPEX-1132™ is designed to help aged asphalt shingles regain flexibility so they can bend more like healthy shingles instead of cracking under stress.
Granule adhesion
Better grit holdProtective granules shield asphalt from sunlight and weather. APEX-1132™ is designed to help shingles hold those granules longer.
Impact / hail support
Impact supportTesting supports the roof-performance story under simulated impact methods, helping buyers see that this is more than a cosmetic treatment.
Flame-spread support
Lower flame spreadThird-party testing shows APEX-1132™ reduces flame spread compared with untreated controls, while competing roof oils tested in the same work increased flame spread.
Performance depends on roof condition, shingle type, weather, preparation, application rate, and other site conditions. APEX-1132™ is a maintenance treatment for suitable asphalt shingles, not a repair for damaged or failing roofs.
Coverage before you buy
How much roof one bottle covers
APEX-1132™ is sold as a concentrate so each bottle goes farther. Mix one purchased gallon with water to make six gallons of ready-to-spray treatment.
1 gallon concentrate
The bottle you buy is concentrated APEX-1132™.
6 gallons mixed
Dilute with water according to the application guide to make ready-to-spray treatment.
About 1,200 sq ft
Typical coverage for one purchased gallon of concentrate is about 1,200 square feet, or 12 roofing squares.
Bigger jobs cost less
Contractors, distributors, and property managers can request bulk formats and project pricing.
Contractor pricing without franchise barriers.
SoyLei supports contractors and distributors directly with competitive bulk pricing, no required franchise fees, no restrictive service contracts, and no minimum quantities for qualifying contractor orders.
Pricing depends on package size, order volume, freight, geography, and current supply terms. Confirm current pricing with SoyLei before quoting a job.
BUYING PATHS
Choose your path
A simple path for homeowners. Direct support for pros.
Homeowner
Order the one-gallon concentrate on Amazon for $200 with UPS shipping. Use it on suitable asphalt-shingle roofs after reviewing the application guide and roof candidacy guidance.
Contractor / roof maintenance crew
Request 5-gallon pails, drums, job-volume recommendations, application guidance, and direct support from SoyLei.
Request contractor pricingCommercial / property manager / distributor
Ask SoyLei to review project size, roof portfolio, package format, contractor support, and distributor supply options.
Talk to SoyLeiROOF CANDIDACY
Use APEX-1132™ before damage makes replacement unavoidable.
The best time to maintain an asphalt-shingle roof is while it is still dry, intact, and structurally sound. APEX-1132™ is for preservation—not emergency repair.
Good candidates
- Asphalt-shingle roofs that are dry, intact, and safely accessible
- New or newer shingles when the goal is early granule-preservation support
- Aging shingles showing stiffness, surface wear, or granule loss
- Roofs without active leaks, soft decking, severe hail damage, or exposed mat
- Residential, contractor, and local commercial asphalt-shingle projects
Repair first or do not apply
- Active leaks or water intrusion
- Missing, torn, lifted, curled, or severely cracked shingles
- Exposed fiberglass mat or severe aggregate loss
- Soft decking, structural issues, or unsafe roof access
- Severe hail, impact, or storm damage
- Wet roofs or unsuitable weather conditions
Product comparison
Why APEX-1132™ is different
Compare APEX-1132™ with common roof-maintenance and replacement paths.
Product features
APEX-1132™ Product Features
Research-backed roof care
The Science
APEX-1132™ is powered by SESO, short for semi-epoxidized soybean oil. In plain terms, it is soybean oil that SoyLei researchers modified so it can soak into asphalt shingles and help aged asphalt act flexible again instead of staying stiff and weathered. That reactive chemistry is what makes APEX-1132™ different from ordinary roof oils or color refresh products.
- What SESO does SESO interacts with aged asphalt binder, helping shingles regain flexibility, hold protective granules, and reactivate the asphalt in the shingle adhesive seal strip so shingles stay sealed, held down, and resist blow-off.
- Why that matters Dry, brittle asphalt lets shingles crack, shed grit, and age faster. APEX-1132™ targets the roof-aging problem instead of only darkening the surface.
- Who built it APEX-1132™ was created by researchers from Iowa State University. The inventors founded SoyLei and personally develop, formulate, manufacture, and support the product.
Patent
Issued patent
The issued U.S. patent covers maintenance treatments for aged or brittle binders in paving and roofing and is under exclusive license to SoyLei Innovations.
Ronald Christopher Williams, Eric W. Cochran, Theodore HUISMAN, Ashley F. Buss, Irvin Pinto, Nacu Hernandez, Joseph Podolsky, Michael J. Forrester, Maxwell D. STAVER, Baker W. Kuehl, Austin D. Hohmann. "Maintenance treatments useful for improving the performance of aged or brittle resinous binders in paving or roofing." US-12297150-B2 assigned to Iowa State University Research Foundation, Inc. Granted 05-13-2025.
Journal article
Peer-reviewed roofing paper
The peer-reviewed roofing paper reports the APEX-1132™ research story for flexibility, granule adhesion, impact behavior, and flame-spread testing.
Kuehl, Baker; Becker, Andrew; Raman, Sharan; McCaslin, Anna; Roberts-Dobie, Jefferson; Forrester, Michael; Hernandez, Nacu; Hohmann, Austin; Williams, Ronald; Cochran, Eric W. "Restoring Asphalt Shingle Integrity with Soybean Oil-Based Emulsions: A Case Study on Performance, Durability, and Sustainability". International Journal of Asphalt Technology, August 2025. https://doi.org/10.1007/s42947-025-00612-6.
SIMPLE FIELD WORKFLOW
Inspect. Mix. Spray. Dry.
Always follow the current APEX-1132™ Safety & Application Guide and SDS. The steps below summarize the basic user journey; they do not replace the official instructions.
Inspect and prepare
Confirm the roof is a suitable treatment candidate. Repair damaged shingles, flashing, and problem areas before treatment. Remove debris so the surface is clean and dry.
Mix the concentrate
Dilute APEX-1132™ with water according to the container and application guide. One gallon of concentrate makes six gallons of ready-to-spray treatment.

Spray evenly
Apply using smooth, overlapping passes at the target coverage rate. Plan a safe route and avoid stepping on freshly treated areas.
Let the roof dry
Allow the treated roof to dry under suitable weather conditions. Drying time depends on temperature, humidity, sunlight, wind, and application rate.
Document the job
For contractors and property managers, record roof condition, application date, quantity used, weather, and photos before and after treatment.
Roof work is hazardous. Use proper fall protection, footwear, PPE, and site controls. Keep pets and occupants away from the active work area until application is complete and surfaces are dry.
RESEARCH-BACKED ROOF CARE
Evidence buyers can inspect.
Product brochures, application guidance, and technical documents are available for buyers, contractors, distributors, and property managers reviewing APEX-1132™.
Consumer brochure and case study
A consumer-facing overview of APEX-1132™ benefits, roof fit, application basics, and why the treatment helps older asphalt shingles last longer.
Consumer BrochureSafety and application instructions
Step-by-step safety, dilution, surface-prep, and spray-application guidance for homeowners, contractors, and distributors preparing to use APEX-1132™.
Application & Safety Guide
Technical data sheet
Product technical data for buyers and applicators who need the core product details before ordering or planning a job.
Technical Data Sheet
Safety data sheet
Safety, handling, and regulatory information for APEX-1132™ users, contractors, distributors, and commercial buyers.
Safety Data SheetCOMMON BUYER QUESTIONS
APEX-1132™ FAQ
What roofs is APEX-1132™ for?
APEX-1132™ is for asphalt-shingle roof maintenance. It is intended for roofs that are dry, intact, structurally sound, and good treatment candidates. Roof condition, shingle type, weather, access, and application details should be evaluated before treatment.
Can I use APEX-1132™ on a new roof?
APEX-1132™ may be used on suitable new asphalt shingles when the goal is early granule-preservation support. Follow the application guide and confirm compatibility before applying.
Does APEX-1132™ fix damaged shingles?
No. APEX-1132™ is a maintenance treatment, not a repair for missing shingles, leaks, storm damage, rotten decking, or major roof defects. Repair problems first, then treat suitable asphalt shingles.
Is APEX-1132™ a coating?
No. It is a penetrating roof-shingle rejuvenation treatment. It is not paint, not a roof coating, and not a film-forming sealcoat.
Will it change the roof color?
Treated shingles may appear darker or refreshed after application, especially when the existing roof is sun-bleached. APEX-1132™ should be understood primarily as a shingle maintenance treatment, not a cosmetic color coating.
How much does one gallon cover?
One purchased gallon of APEX-1132™ concentrate makes six gallons of ready-to-spray treatment. At approximately 200 square feet per mixed gallon, one purchased gallon treats about 1,200 square feet, or 12 roofing squares.
How do I mix APEX-1132™?
APEX-1132™ is a 5:1 concentrate. Mix according to the product label and current application guide before spraying. Do not apply the concentrate without following the dilution instructions.
How soon can the roof be used after application?
Allow the treated surface to dry under suitable weather conditions before normal roof access. Drying time depends on temperature, humidity, sunlight, wind, and application rate. Follow the application guide for current details.
Is APEX-1132™ safe around pets and plants?
APEX-1132™ is designed for safe use around typical residential environments when used as directed. As a practical precaution, protect delicate ornamentals during application, rinse accidental overspray promptly, and keep pets away from the active work area until application is complete and surfaces are dry. Review the SDS before use.
What should I do about overspray?
Rinse accidental overspray promptly with water from nearby surfaces, plants, tools, and equipment. Protect vehicles, windows, delicate ornamentals, and finished surfaces during application.
How is APEX-1132™ different from biodiesel or raw vegetable oil treatments?
APEX-1132™ uses engineered SESO chemistry—semi-epoxidized soybean oil—rather than simply relying on biodiesel-like methyl or ethyl esters or raw vegetable oil. SESO is designed to interact with oxidized asphalt binder and support durable shingle performance, not just add temporary oil or darken the surface.
Who developed APEX-1132™?
APEX-1132™ is developed, formulated, manufactured, and supported by the original Iowa State University chemical and civil engineering team behind the technology.
Is bulk ordering available?
Yes. Contractors, property managers, and distributors can contact SoyLei for 5-gallon pails, drums, totes, tanker quantities, application support, and project-volume pricing.
Do I need to be part of a franchise to use APEX-1132™ commercially?
No. SoyLei supports contractors and distributors directly. There are no required franchise fees or restrictive service contracts to request contractor pricing.
Where can homeowners buy APEX-1132™?
Homeowners can buy the one-gallon concentrate on Amazon. Contractors and distributors should contact SoyLei directly for bulk formats and project support.
Contractor and distributor supply
Bulk orders for contractors and distributors
SoyLei can support APEX-1132™ orders beyond the one-gallon Amazon package, from small contractor jobs to distributor and tanker-truck supply. Talk to SoyLei for package sizing, application guidance, and the best bulk pricing path for the job.
5 gallon buckets
Practical package size for contractors, roof-maintenance crews, and local commercial work.
Totes
Bulk supply for higher-throughput applicators and distributors.
Tanker truck quantities
Direct supply path for large commercial, distributor, or programmatic roof-maintenance demand.
Best bulk pricing
Contact SoyLei directly for project volumes, distributor pricing, and package recommendations.
READY TO MAINTAIN A ROOF?
Buy one gallon online or price your next job with SoyLei.
APEX-1132™ gives homeowners a simple Amazon buying path and gives contractors direct access to manufacturer support, bulk formats, and competitive project pricing.





