ACADEMIC SCIENTIFIC &
TECHNICAL REFERENCES

ResearchGate Community Discussion. "Epoxy vs Polyester Resin Against Volumetric Shrinkage During Curing Process." ResearchGate, 2017.

Bogetti, T.A. & Gillespie, J.W. "Cure Shrinkage Characterization and Modeling of a Polyester Resin Containing Low Profile Additives — Volumetric shrinkage of 6% reported for standard polyester resin." Composites Science and Technology / ScienceDirect, 2006.

Multiple Authors. "Decreasing the High Volumetric Cure Shrinkage of Unsaturated Polyester Resins by Modification with an Unsaturated Hyperbranched Polyester Resin — confirms UPE resins shrink 7–12% during crosslinking." ResearchGate / Polymer journal, 2018.

Rogers, M. et al. "Development of Low Shrinkage Curing Techniques for Unsaturated Polyester and Vinyl Ester Reinforced Composites — confirms polyolefin resin volumetric cure shrinkage of 7–12%." PMC / NCBI (Polymers), 2022.

Wikipedia Contributors. "Fiberglass — notes polyester contraction is often 5–6%, causing distortions and cracks as fibres do not contract." Wikipedia, 2025.

Wikipedia Contributors. "Vinyl Ester Resin — produced by esterification of epoxy resin with acrylic or methacrylic acids; common resin in marine industry due to corrosion resistance and ability to withstand water absorption." Wikipedia, 2025.

Ark Composites. "Vinyl Ester Resin: Boat Building and Marine Applications — confirms superior moisture resistance and ability to prevent hydrolysis-induced osmotic blistering." Ark Composites, 2024.

Boats.net Editorial. "Marine Resin Types: Pros and Cons — vinyl ester offers highest resistance to corrosion, heat, and water penetration, making it ideal for hull repairs with best elongation properties." Boats.net, 2020.

RealLandComposite. "Is Vinyl Ester Resin Better Than Polyester Resin? — vulnerable ester groups only located at ends of molecular chains, preventing water attack; combines high strength with high elongation-at-break." RealLandComposite, 2024.

D’Antonio, S. "Fiberglass Repair and Secondary Bonds — resin used for repairs should be of equal or preferably greater adhesive strength than original; usually means vinyl ester or epoxy." Steve D’Antonio Marine Consulting, 2023.

TechnoFRP. "Advantages and Applications of Pultruded Fiberglass Rods — pultruded materials exhibit higher tensile strength because reinforcing fibres are continuous in length, making them lightweight yet strong." TechnoFRP, 2023.

Liberty Pultrusions. "Pultruded Rod — FRP pultrusion is up to 75% lighter than steel but just as strong; FRP won’t rust, corrode, warp, rot or decay." Liberty Pultrusions, 2023.

Creative Composites Group. "FRP Composites vs. Steel: Why Composites Come Out On Top — pultruded profiles have higher tensile strength than conventional steel yet are approximately 80% lighter." Creative Composites Group, 2022.

Strongwell. "Nine Key Properties of Pultruded Fiber Reinforced Polymer — continuous fibre reinforcement provides high tensile and flexural strength; excellent resistance to UV radiation, moisture, and temperature variations." Strongwell, 2023.

Tencom Ltd. "Is Pultruded Fiberglass Stronger than Steel? — fiberglass has superior mechanical properties to steel and outperforms in many other categories including corrosion and marine waterfront applications." Tencom Ltd., 2020.

Xie, Y. et al. "Silane Coupling Agents Used for Natural Fiber/Polymer Composites: A Review — silane molecule must have bifunctional groups to respectively react with the two phases, forming a bridge between them." ScienceDirect (Composites Part A), 2010.

Dow Corning / SpecialChem. "Silane: A Multifunctional Compound for Plastics — coupling agents act as a link between inorganic substrate and organic material; alkoxy groups react with surface groups of inorganic fillers." SpecialChem, 2025.

Zhang, L. et al. "Glass Fiber Treated with Glycine Bridged Silane Coupling Agent — silane coupling agents play indispensable role in improving interfacial adhesion of composite materials; tensile strength increased by 41–67% over untreated composites." Royal Society of Chemistry (RSC Advances), 2025.

Silico Organosilicon / Shandong. "Silane Coupling Agents — the organic group of the silane molecule reacts with the organic material to produce a covalent bond; inorganic and organic materials become tightly bound." Silico Organosilicon, 2024.

GlueSpec. "Methyl Methacrylate (MMA) Adhesive Characteristics — MMAs partially solvate many surfaces they bond; can cut through gel coats and release liners, bonding moulded parts like FRP without additional preparation." GlueSpec, 2023.

Gluegun.com. "User’s Guide to Methyl Methacrylate Adhesives — amines react with peroxides to release reactive free radicals, which interact with a double bond in methacrylate monomers, resulting in rapid exothermic polymerisation." Gluegun.com, 2025.

SciGrip / CompositesWorld. "An Introduction to MMA Structural Adhesives — MMA adhesives form by free radical polymerisation mechanism; bonds well to fiberglass, carbon fibre, unsaturated polyester, vinyl ester, gel-coat and epoxy." CompositesWorld White Paper, 2022.

Gluegun.com. "Methyl Methacrylate Adhesives — Applications, Pros, & Products — widely used in boat-building; ability to bond variable bond lines useful for inherent gaps in large manufactured composite pieces." Gluegun.com, 2025.

Alliance Chemical. "Acetone — used industrially for surface preparation before painting and bonding, thinning polyester and fiberglass resins; standard two-solvent wipe technique used per ASTM D2651." Alliance Chemical, 2023.

FibreGlast. "Acetone — industry standard in cleaning; dissolves and removes epoxy, polyester, and vinyl ester resin; removes grease and wax for surface preparation prior to bonding or repair." FibreGlast, 2024.

LabProInc. "What Is MEK Solvent? — MEK is used in production of fiberglass and polyester resins; serves as cleaning agent to remove grease, oils, and adhesives from surfaces before bonding." LabProInc, 2024.

The Epoxy Experts. "Surface Preparation of Substrates for Bonding or Coating — degrease and dry: rinse with acetone or Methyl Ethyl Ketone (MEK) and dry; standard pre-bond protocol for fiberglass." The Epoxy Experts, 2016.

3M Technical Bulletin. "Surface Preparation and Pretreatment for Structural Adhesives — surfaces must either be abraded or cleaned with a solvent such as acetone, MEK, etc.; abrading recommended for glossy composite surfaces." 3M / Scotch-Weld, 2022.

West System Epoxy. "Uncontrolled Cure — fill large cavities with epoxy in multiple layers; timing pours so mild exotherm peaks and begins falling before next batch; too much heat causes cracks to propagate." West System Epoxy Technical Guidance, 2024.

CNMI Industrial Corporation. "Why Epoxy Resin Overheats: The Science of Exotherm Control — overheating permanently weakens polymer structure; the deeper the pour, the more heat concentrates internally; deep-pour systems are designed differently." CNMI, 2025.

ExploreComposites (Rogers, C.). "About Thermoset Resins — lower hydrogen peroxide-content catalysts help lower speed of resin gel and reduce exotherm heat and shrinkage; VE resins benefit from elevated temperature post-cure." ExploreComposites, 2022.

TrueComposites. "How Temperature Affects Resin Curing — thick pours require more careful temperature management; rapid temperature increases cause resin to cure too quickly, trapping air bubbles and creating internal stress that leads to cracking." TrueComposites, 2024.

D’Antonio, S. "Fiberglass Repair and Secondary Bonds — grinding/sanding is primary means by which secondary bonding surface is prepared; uses aggressive 80-grit sandpaper, exposing filaments of glass reinforcement, a surface feature ideally suited to enhancing adhesion." Steve D’Antonio Marine Consulting, 2023.

Park, S-M. et al. "Strength and Failure Modes of Surface Treated CFRP Secondary Bonded Single-Lap Joints — for secondary bonding, popular surface treatment methods involve surface abrasion by sanding, grit blasting, or laser ablation." ScienceDirect (Composites Science and Technology), 2020.

Morampudi et al. "Surface Preparation Strategies in Secondary Bonded Thermoset-Based Composite Materials: A Review — sanding modifies fracture toughness by activation of mechanical interlocking; grit size for thermoset composites ranges 80–800 grit." ScienceDirect / ResearchGate, 2021.

IncureLab. "Bonding Brilliance: Does Adhesive Stick to Fiberglass Effectively? — abrading the surface removes outer layer of contaminated or weak resin, exposes fresh reactive resin, and creates roughened profile for mechanical interlocking." INCURE Inc., 2025.

The Rot Doctor. "Rot Repair in Glass Boats — transoms are laminated plywood structures very subject to rot; water gets in through any of the numerous below-waterline glass penetrations; the process is slow and insidious until a lot of wood is destroyed and the transom starts to flex and sag." The Rot Doctor, 2024.

Pascoe, D. (Marine Surveyor). "Preventing Rot in Encapsulated Wood Structures — plywood structural rot commonly found in 20-year-old boats due to water weeping through stringers; problem often not discovered until too late." YachtSurvey.com, 2023.

BoatLife. "Three Easy Steps to Identify Rot — fibreglass boats contain marine grade plywood or balsa wood at their core; both are durable but not completely waterproof; wood can rot if not cared for properly; dirty water seeping out when bolts removed indicates rotting wood." BoatLife, 2024.

The Rot Doctor. "Fiberglass Boat Maintenance — most fiberglass boats have wood in them; plywood stringers and bulkheads are made of non-marine plywood particularly susceptible to rot because of voids; builders drill limber holes, fuel tubing holes, and wiring holes right through the glass and wood." The Rot Doctor, 2024.

Wikipedia Contributors. "Fiberglass — GRP is stronger than many metals by weight, non-magnetic, can be moulded into complex shapes, and chemically inert; widely used in boats, automobiles, and structural applications." Wikipedia, 2025.

Creative Composites Group. "FRP Composites vs. Steel — FRP inherently corrosion-resistant, warding off chemicals, salt, and water; FRP will not permanently deform under working load unlike steel and other metals." Creative Composites Group, 2022.

Strongwell. "Nine Key Properties of Pultruded FRP — FRP is non-conductive, has low thermal conductivity, and exhibits excellent resistance to UV radiation, moisture, and temperature variations." Strongwell, 2023.

ECI FRP Products. "Structural FRP Profiles — FRP offers the strength of steel at a fraction of the weight; unlike steel and aluminium, FRP won’t rust, corrode, warp, rot, decay, or attract insect damage." ECI / Fiberglass Structural Profiles, 2023.

ExploreComposites (Rogers, C.). "About Thermoset Resins — vinyl ester resins benefit from elevated temperature post-cure more than polyester, fully taking advantage of increased mechanical properties." ExploreComposites, 2022.

TAP Plastics. "High-Strength Isophthalic Polyester Resin — product gels in approximately 15–20 minutes, reaches peak exotherm of 345F; thermal post-cure improves final strength retention." TAP Plastics, 2024.

Easy Composites. "EL160 High Temperature Epoxy Laminating Resin — post-cure at elevated temperature achieves highest HDT; initial cure at 40C cures resin to adequately non-brittle state." Easy Composites, 2024.

Rogers, M. et al. "Development of Low Shrinkage Curing Techniques for Unsaturated Polyester and Vinyl Ester Reinforced Composites — exothermic reaction temperature greatly influences shrinkage; higher proportion of hardeners facilitates higher exothermic reaction and rapid curing temperature." PMC / NCBI (Polymers), 2022.

Park, S-M. et al. "Strength and Failure Modes of Surface Treated CFRP Bonded Single-Lap Joints in Static and Fatigue Tensile Loading — bonded joint failure modes and fatigue endurance curves under tensile and cyclic loading." ScienceDirect (Composites Science and Technology), 2020.

West System Epoxy. "Uncontrolled Cure — not waiting long enough between pours can cause too much heat to build; cracks propagate during uncontrolled cure as mixed resin and hardener decompose." West System Epoxy, 2024.

The Rot Doctor. "Fiberglass Boat Maintenance — when the transom fails, it starts to flex and sag; structural failure is slow and insidious until wood is destroyed; delamination occurs from repeated vibration and moisture." The Rot Doctor, 2024.

ScienceDirect Cure Shrinkage Overview. "Cure Shrinkage — cure shrinkage may cause premature cracks or delamination at the interface of the resin and aggregate; excessive shrinkage strains cause delamination between overlay and substrate." ScienceDirect, 2024.