Architects & specifiers

The whole envelope, in one specification.

Glazing, opaque structure and retrofit — three systems from one engineering team. Every level below carries its nominal thickness, its areal density and the standard it is classified to, so it can go straight into a glazing schedule or a door and wall specification.

BR2 – BR7

Transparent — BTP glazing

FB1 – FB7

Opaque — BNTP panels

7.44 kg/m²

Lightest certified panel

EN 1063 · EN 1522

VPAM · STANAG

Request the specification pack → Find my configuration

Three systems. One decision.

Two questions: is the opening glazed, and is the glass staying?

Glazed · glass stays

FTL Security Laminate

Bonded PET laminate on the existing pane. Forced entry and anti-vandal. Under 1 mm added, no change to the frame, no change to the glazing schedule.

Not a ballistic product — see below

Jump to FTL data →

Glazed · new glazing

BTP Ballistic Glazing

Laminated glass, polycarbonate, PMMA and PET composite. BR2 to BR7, 11 to 37 mm, 27.5 to 77 kg/m². Replaces the glazing unit.

EN 1063 · frames sized to areal density

Jump to BTP table →

Opaque · walls & doors

BNTP Opaque Armour

UHMWPE, SiC ceramic and PET panels built into wall, door and frame build-ups. FB1 to FB7, 8 to 21 mm, from 7.44 kg/m².

EN 1522 · VPAM · STANAG

Jump to BNTP table →

No installer available, or no site access

BTP-L-4 is a self-adhesive portable ballistic panel at BR3 or BR4 — 16.7 to 19 kg/m², fitted by the client's own people, dispatched within five hours of order confirmation where Fortis partners operate.

Fragment, blast or drone threat

Glazing systems are not the answer to overpressure and fragmentation. The WIN systems oversize the glass and cover the frame with an external PMMA–polycarbonate–BoPET panel, with FTL 600 inside as the splinter barrier. WIN detail →

Transparent — glazed openings

BTP Ballistic Glazing — BR2 to BR7

A layered composite of laminated safety glass, polycarbonate, acrylic (PMMA) and selected PET, engineered to absorb and disperse projectile energy while holding optical clarity. Weights are per square metre — the number your frame, lintel and ironmongery have to carry.

Product	Classification	Test round	Composite	Thickness	Areal density
BTP-1	BR2	9 × 19 mm Luger	Laminated glass + polycarbonate + PET	11 mm	27.5 kg/m²
BTP-2	BR3	.357 Magnum	Laminated glass + PET	13 mm	32.5 kg/m²
BTP-3	BR4	.44 Magnum	Laminated glass + PET	15 mm	37.5 kg/m²
BTP-L-4	BR3 lightweight	.357 Magnum	2 polymers + PET — portable, self-adhesive	14 mm	16.7 kg/m²
BTP-L-4	BR4 lightweight	.44 Magnum	2 polymers + PET — portable, self-adhesive	16 mm	19 kg/m²
BTP-5	BR5	7.62 × 39 · 5.56 × 45 mm	Laminated glass + polycarbonate + PET	25 mm	49.7 kg/m²
BTP-6	BR6	7.62 × 51 mm	Laminated glass + PET	29 mm	55 kg/m²
BTP-7	BR7	7.62 × 54R mm API	Laminated glass + PET	37 mm	77 kg/m²
Other BR levels, curved glazing and non-standard geometry — on request.

Areal density stated per m² of glazing. Classification to EN 1063; EN 1522 applies to the complete window, door or shutter assembly including frame. The inner face carries a BoPET spall-control layer. Classifications apply to the complete tested Fortis system.

Opaque — walls, doors, frames

BNTP Opaque Armour Panels — FB1 to FB7

Glazing is rarely the weak point — the wall beside it usually is. BNTP panels are UHMWPE laminates, optionally with a silicon carbide ceramic strike face, built into structural walls, safe-room linings, door leaves and window and door frames.

Product	Classification	Test round	Composite	Thickness	Areal density
BNTP-1	FB1 – FB4	All handguns	UHMWPE + PET	8 mm	7.44 kg/m²
BNTP-2	FB5	7.62 × 39 mm FMJ · 5.56 × 45 mm · .223 Rem	UHMWPE + PET	16 mm	14.8 kg/m²
BNTP-3	FB6 · VPAM 6 · STANAG L1	Rifle, ball	UHMWPE + SiC ceramic + PET	16 mm	33 kg/m²
BNTP-4	FB7 · VPAM 7 · STANAG L2	Rifle, hard core	UHMWPE + SiC ceramic + PET	18 mm	34.9 kg/m²
BNTP-5	FB7 · VPAM 7 · STANAG L2	Rifle, hard core	Ballistic steel + UHMWPE	21 mm	55.4 kg/m²
Higher levels — NATO STANAG Level 3, VPAM 8, FB8 — on request.

The composite-versus-steel line, in your own table

BNTP-4 and BNTP-5 are both FB7 / STANAG Level 2. The UHMWPE and ceramic build is 34.9 kg/m². The ballistic steel build is 55.4 kg/m². Same certificate, 37% less dead load — which is the difference between a lining the existing structure can carry and one it cannot.

Where these go

Window and door frames, ballistic door leaves, safe-room walls, structural walls and reception counters. Panels are built into the wall build-up on site, so the finish is unaffected and nothing reads as armoured.

Retrofit — existing glazing

FTL 300 & FTL 600 Security Laminate

The same high-tensile PET laminate we build into the certified ballistic glazing above, supplied as a bonded retrofit on the glass already in the building. Under 1 mm added. No change to the pane, the frame or the structural opening — which is why it does not touch the glazing schedule at all.

Scope, stated plainly: FTL is an anti-break-in and anti-vandal product. It is not classified ballistic glazing and must not be specified against a ballistic requirement. Where the brief calls for a BR level, specify BTP. EN 356 classification is in progress.

Entry-level 01

FTL 300, interior face

Low-energy impact and glass retention on fracture. Internal glazing, low-risk facades.

Intermediate 02

FTL 600, interior face

Forced entry and sustained tool attack. Ground-floor and perimeter glazing.

Comprehensive 03 ★

FTL 300 exterior + FTL 600 interior

The campus-wide standard. Adds an exterior sacrificial layer against vandalism.

Maximum 04 ❖

FTL 300 ext + 2 × FTL 600 int

Repeat-strike resistance. Entrance lobbies and glazing facing public roads.

Optical property	FTL 300	FTL 600	Method
Thickness	300 µ / 12 mil	600 µ / 24 mil	GB/T 29061
Visible light transmittance	89 ± 3 %	92 ± 3 %	GB/T 2680
Clarity	≥ 99 %	≥ 99 %	ASTM D1003
Haze / fog degree	≤ 3.5 %	≤ 3.5 %	ASTM D1003
UV blocking	≥ 25 %	≥ 99 %	GB/T 2680
Total solar energy rejection	13 ± 2 %	14 ± 2 %	GB/T 2680
Aging — UV, 1,200 h	No change	No change	0.5 W/m² @ 340 nm

Roll dimensions 1.52 m × 45 m, self-adhesive. Installed exclusively by certified Fortis technicians. Full FTL product page, reflection and IR data →

Structural

What the frame actually carries.

Areal density is the figure that decides whether an opening can be upgraded at all. Unit weight for three common pane sizes, so the answer is available before the structural engineer is.

System	1.2 × 2.2 m 2.64 m²	1.5 × 2.4 m 3.60 m²	1.8 × 3.0 m 5.40 m²
BTP-3 — BR4 · 37.5 kg/m²	99 kg	135 kg	203 kg
BTP-5 — BR5 · 49.7 kg/m²	131 kg	179 kg	268 kg
BTP-6 — BR6 · 55 kg/m²	145 kg	198 kg	297 kg
BTP-7 — BR7 · 77 kg/m²	203 kg	277 kg	416 kg
FTL 600 retrofit	Under 1 mm added — no meaningful change to dead load, frame or opening.

Glazing weight only, rounded to the nearest kilogram. Excludes frame, gaskets and fixings. Confirm hinge, hardware and lintel capacity with the structural engineer before issuing for construction.

Ready to specify

Clause text. Copy it into the schedule.

Written to drop into a specification with the level swapped for the one the threat assessment calls for. Send us the drawing set and we will return it marked up, at no cost.

Ballistic glazing — BTP

Ballistic glazing: Fortis Protection Systems BTP-6 laminated composite unit, comprising laminated safety glass with selected PET interlayers and BoPET spall-control inner face. Nominal thickness 29 mm; areal density 55 kg/m². Classified to EN 1063 class BR6 (7.62 x 51 mm). Frames, fixings, lintels and ironmongery to be designed for the stated areal density. Supplied and certified by Fortis Protection Systems; test documentation for the complete tested system to be issued with the glazing. Substitution only on written approval of an equal certified system.

Opaque armour lining — BNTP

Opaque ballistic lining: Fortis Protection Systems BNTP-4 composite panel, comprising ultra-high molecular weight polyethylene (UHMWPE) with silicon carbide (SiC) ceramic strike face and selected PET. Nominal thickness 18 mm; areal density 34.9 kg/m². Classified to EN 1522 class FB7 / VPAM 7 / NATO STANAG Level 2. Panel to be incorporated into the wall, door leaf or frame build-up to the manufacturer's detail, with continuous coverage across joints and service penetrations. Supplied and certified by Fortis Protection Systems.

Retrofit security laminate — FTL

Security laminate to existing glazing: Fortis Protection Systems FTL 600, 600 micron optically clear PET security laminate, bonded to the internal face of existing glazing. Anti-vandal and anti-break-in application; not classified ballistic glazing and not to be specified against a ballistic requirement. Visible light transmittance 92 +/- 3%; clarity not less than 99%; UV blocking not less than 99% (GB/T 2680, ASTM D1003). Where external sacrificial protection is required, add FTL 300 to the external face. Installed by Fortis-certified technicians only; installation certificate and batch records to be issued per project.

From drawing set to certificate.

Engineered and produced in Slovenia, EU.

Threat assessment

Defines the level per zone. Not every opening needs the same class, and specifying uniformly is how budgets are wasted.

Marked-up drawing set

We return your set with the system, level and build-up called out per opening, plus areal density for the structural check.

Production to size

Glazing and panels are made to the schedule in the Fortis production units in Slovenia. Curved and non-standard geometry on request.

Certification pack

Test documentation for the complete tested system, lab-traceable batch records and an installation certificate per project.

Send the drawing set. We'll mark it up.

System, level and build-up called out per opening, with areal density for the structural check and the full test documentation. No cost, no obligation — we would rather be specified correctly than specified often.

Request the specification pack → Full catalog